64272507315 has 16 divisors (see below), whose sum is σ = 102868558848. Its totient is φ = 34267821536.

The previous prime is 64272507311. The next prime is 64272507347. The reversal of 64272507315 is 51370527246.

It is a cyclic number.

It is not a de Polignac number, because 64272507315 - 2² = 64272507311 is a prime.

It is not an unprimeable number, because it can be changed into a prime (64272507311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 628977 + ... + 723986.

It is an arithmetic number, because the mean of its divisors is an integer number (6429284928).

Almost surely, 2^64272507315 is an apocalyptic number.

64272507315 is a deficient number, since it is larger than the sum of its proper divisors (38596051533).

64272507315 is a wasteful number, since it uses less digits than its factorization.

64272507315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1356138.

The product of its (nonzero) digits is 352800, while the sum is 42.

The spelling of 64272507315 in words is "sixty-four billion, two hundred seventy-two million, five hundred seven thousand, three hundred fifteen".