72905572315 has 16 divisors (see below), whose sum is σ = 92114208000. Its totient is φ = 55240974432.

The previous prime is 72905572253. The next prime is 72905572321. The reversal of 72905572315 is 51327550927.

It is a cyclic number.

It is not a de Polignac number, because 72905572315 - 2⁹ = 72905571803 is a prime.

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, 295794 + ... + 483016.

It is an arithmetic number, because the mean of its divisors is an integer number (5757138000).

Almost surely, 2^72905572315 is an apocalyptic number.

72905572315 is a deficient number, since it is larger than the sum of its proper divisors (19208635685).

72905572315 is a wasteful number, since it uses less digits than its factorization.

72905572315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191346.

The product of its (nonzero) digits is 661500, while the sum is 46.

The spelling of 72905572315 in words is "seventy-two billion, nine hundred five million, five hundred seventy-two thousand, three hundred fifteen".