72949500817200 has 1200 divisors, whose sum is σ = 309000106060800. Its totient is φ = 16473069688320.

The previous prime is 72949500817199. The next prime is 72949500817201. The reversal of 72949500817200 is 271800594927.

72949500817200 is a `hidden beast` number, since 7 + 2 + 9 + 495 + 0 + 0 + 81 + 72 + 0 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (72949500817199) and next prime (72949500817201).

It is a tau number, because it is divible by the number of its divisors (1200).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (72949500817201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 239 ways as a sum of consecutive naturals, for example, 922356057 + ... + 922435143.

It is an arithmetic number, because the mean of its divisors is an integer number (257500088384).

Almost surely, 2^{72949500817200} is an apocalyptic number.

72949500817200 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 72949500817200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (154500053030400).

72949500817200 is an abundant number, since it is smaller than the sum of its proper divisors (236050605243600).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

72949500817200 is a wasteful number, since it uses less digits than its factorization.

72949500817200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79221 (or 79187 counting only the distinct ones).

The product of its (nonzero) digits is 2540160, while the sum is 54.

The spelling of 72949500817200 in words is "seventy-two trillion, nine hundred forty-nine billion, five hundred million, eight hundred seventeen thousand, two hundred".