72700346880 has 1280 divisors, whose sum is σ = 315271249920. Its totient is φ = 15527116800.

The previous prime is 72700346791. The next prime is 72700346921. The reversal of 72700346880 is 8864300727.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (1280).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 554964415 + ... + 554964545.

It is an arithmetic number, because the mean of its divisors is an integer number (246305664).

Almost surely, 2^72700346880 is an apocalyptic number.

72700346880 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 72700346880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (157635624960).

72700346880 is an abundant number, since it is smaller than the sum of its proper divisors (242570903040).

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

72700346880 is a wasteful number, since it uses less digits than its factorization.

72700346880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238 (or 216 counting only the distinct ones).

The product of its (nonzero) digits is 451584, while the sum is 45.

The spelling of 72700346880 in words is "seventy-two billion, seven hundred million, three hundred forty-six thousand, eight hundred eighty".