72923499025776 has 320 divisors, whose sum is σ = 239589633853440. Its totient is φ = 20803111649280.

The previous prime is 72923499025757. The next prime is 72923499025787. The reversal of 72923499025776 is 67752099432927.

72923499025776 is a `hidden beast` number, since 7 + 2 + 9 + 2 + 3 + 49 + 9 + 0 + 2 + 577 + 6 = 666.

It is a super-2 number, since 2×72923499025776² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 6400722736 + ... + 6400734128.

It is an arithmetic number, because the mean of its divisors is an integer number (748717605792).

Almost surely, 2^{72923499025776} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 72923499025776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (119794816926720).

72923499025776 is an abundant number, since it is smaller than the sum of its proper divisors (166666134827664).

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

72923499025776 is a wasteful number, since it uses less digits than its factorization.

72923499025776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14501 (or 14489 counting only the distinct ones).

The product of its (nonzero) digits is 720135360, while the sum is 72.

The spelling of 72923499025776 in words is "seventy-two trillion, nine hundred twenty-three billion, four hundred ninety-nine million, twenty-five thousand, seven hundred seventy-six".