72646164772502 has 8 divisors (see below), whose sum is σ = 111287741779296. Its totient is φ = 35550250846072.

The previous prime is 72646164772439. The next prime is 72646164772513. The reversal of 72646164772502 is 20527746164627.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×72646164772502² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

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, 386415769973 + ... + 386415770160.

It is an arithmetic number, because the mean of its divisors is an integer number (13910967722412).

Almost surely, 2^{72646164772502} is an apocalyptic number.

72646164772502 is a deficient number, since it is larger than the sum of its proper divisors (38641577006794).

72646164772502 is a wasteful number, since it uses less digits than its factorization.

72646164772502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 772831540182.

The product of its (nonzero) digits is 47416320, while the sum is 59.

The spelling of 72646164772502 in words is "seventy-two trillion, six hundred forty-six billion, one hundred sixty-four million, seven hundred seventy-two thousand, five hundred two".