72992646064 has 20 divisors (see below), whose sum is σ = 152301963856. Its totient is φ = 33688913472.

The previous prime is 72992646049. The next prime is 72992646091. The reversal of 72992646064 is 46064629927.

It is a super-3 number, since 3×72992646064³ (a number of 34 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 72992645996 and 72992646014.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 175462884 + ... + 175463299.

Almost surely, 2^72992646064 is an apocalyptic number.

It is an amenable number.

72992646064 is an abundant number, since it is smaller than the sum of its proper divisors (79309317792).

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

72992646064 is a wasteful number, since it uses less digits than its factorization.

72992646064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350926204 (or 350926198 counting only the distinct ones).

The product of its (nonzero) digits is 7838208, while the sum is 55.

The spelling of 72992646064 in words is "seventy-two billion, nine hundred ninety-two million, six hundred forty-six thousand, sixty-four".