72698978304 has 224 divisors, whose sum is σ = 226740720000. Its totient is φ = 22956244992.

The previous prime is 72698978207. The next prime is 72698978311. The reversal of 72698978304 is 40387989627.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4193847 + ... + 4211145.

Almost surely, 2^72698978304 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 72698978304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (113370360000).

72698978304 is an abundant number, since it is smaller than the sum of its proper divisors (154041741696).

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

72698978304 is a wasteful number, since it uses less digits than its factorization.

72698978304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17353 (or 17323 counting only the distinct ones).

The product of its (nonzero) digits is 36578304, while the sum is 63.

The spelling of 72698978304 in words is "seventy-two billion, six hundred ninety-eight million, nine hundred seventy-eight thousand, three hundred four".