72142936536 has 64 divisors (see below), whose sum is σ = 198379612800. Its totient is φ = 21861486240.

The previous prime is 72142936529. The next prime is 72142936561. The reversal of 72142936536 is 63563924127.

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 15 ways as a sum of consecutive naturals, for example, 1097266 + ... + 1161153.

It is an arithmetic number, because the mean of its divisors is an integer number (3099681450).

Almost surely, 2^72142936536 is an apocalyptic number.

It is an amenable number.

72142936536 is an abundant number, since it is smaller than the sum of its proper divisors (126236676264).

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

72142936536 is a wasteful number, since it uses less digits than its factorization.

72142936536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2258461 (or 2258435 counting only the distinct ones).

The product of its digits is 1632960, while the sum is 48.

The spelling of 72142936536 in words is "seventy-two billion, one hundred forty-two million, nine hundred thirty-six thousand, five hundred thirty-six".