72897910846 has 8 divisors (see below), whose sum is σ = 110207865600. Its totient is φ = 36161955648.

The previous prime is 72897910837. The next prime is 72897910871. The reversal of 72897910846 is 64801979827.

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

It is a super-2 number, since 2×72897910846² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 143499571 + ... + 143500078.

It is an arithmetic number, because the mean of its divisors is an integer number (13775983200).

Almost surely, 2^72897910846 is an apocalyptic number.

72897910846 is a deficient number, since it is larger than the sum of its proper divisors (37309954754).

72897910846 is a wasteful number, since it uses less digits than its factorization.

72897910846 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286999778.

The product of its (nonzero) digits is 12192768, while the sum is 61.

The spelling of 72897910846 in words is "seventy-two billion, eight hundred ninety-seven million, nine hundred ten thousand, eight hundred forty-six".