72698922864 has 120 divisors (see below), whose sum is σ = 211553876352. Its totient is φ = 23279892480.

The previous prime is 72698922853. The next prime is 72698922899. The reversal of 72698922864 is 46822989627.

72698922864 is a `hidden beast` number, since 7 + 269 + 8 + 92 + 286 + 4 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 552132 + ... + 671004.

Almost surely, 2^72698922864 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 72698922864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105776938176).

72698922864 is an abundant number, since it is smaller than the sum of its proper divisors (138854953488).

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

72698922864 is a wasteful number, since it uses less digits than its factorization.

72698922864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119055 (or 119046 counting only the distinct ones).

The product of its digits is 41803776, while the sum is 63.

The spelling of 72698922864 in words is "seventy-two billion, six hundred ninety-eight million, nine hundred twenty-two thousand, eight hundred sixty-four".