72897903884 has 48 divisors (see below), whose sum is σ = 137874969120. Its totient is φ = 33525273600.

The previous prime is 72897903853. The next prime is 72897903893. The reversal of 72897903884 is 48830979827.

It is a super-3 number, since 3×72897903884³ (a number of 34 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 72897903884.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35926982 + ... + 35929010.

It is an arithmetic number, because the mean of its divisors is an integer number (2872395190).

Almost surely, 2^72897903884 is an apocalyptic number.

It is an amenable number.

72897903884 is a deficient number, since it is larger than the sum of its proper divisors (64977065236).

72897903884 is a wasteful number, since it uses less digits than its factorization.

72897903884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4170 (or 4168 counting only the distinct ones).

The product of its (nonzero) digits is 48771072, while the sum is 65.

The spelling of 72897903884 in words is "seventy-two billion, eight hundred ninety-seven million, nine hundred three thousand, eight hundred eighty-four".