72851016736 has 24 divisors (see below), whose sum is σ = 145566121680. Its totient is φ = 35881843008.

The previous prime is 72851016727. The next prime is 72851016781. The reversal of 72851016736 is 63761015827.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16987366 + ... + 16991653.

It is an arithmetic number, because the mean of its divisors is an integer number (6065255070).

Almost surely, 2^72851016736 is an apocalyptic number.

It is an amenable number.

72851016736 is a deficient number, since it is larger than the sum of its proper divisors (72715104944).

72851016736 is a wasteful number, since it uses less digits than its factorization.

72851016736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33979096 (or 33979088 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 46.

Subtracting from 72851016736 its reverse (63761015827), we obtain a palindrome (9090000909).

The spelling of 72851016736 in words is "seventy-two billion, eight hundred fifty-one million, sixteen thousand, seven hundred thirty-six".