72251637040700 has 36 divisors (see below), whose sum is σ = 168846517948920. Its totient is φ = 26677527522240.

The previous prime is 72251637040697. The next prime is 72251637040703. The reversal of 72251637040700 is 704073615227.

It is an interprime number because it is at equal distance from previous prime (72251637040697) and next prime (72251637040703).

It is a super-2 number, since 2×72251637040700² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72251637040703) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27789089870 + ... + 27789092469.

Almost surely, 2^{72251637040700} is an apocalyptic number.

It is an amenable number.

72251637040700 is an abundant number, since it is smaller than the sum of its proper divisors (96594880908220).

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

72251637040700 is a wasteful number, since it uses less digits than its factorization.

72251637040700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55578182366 (or 55578182359 counting only the distinct ones).

The product of its (nonzero) digits is 493920, while the sum is 44.

The spelling of 72251637040700 in words is "seventy-two trillion, two hundred fifty-one billion, six hundred thirty-seven million, forty thousand, seven hundred".