72917231226315 has 16 divisors (see below), whose sum is σ = 133334365671168. Its totient is φ = 33333591417696.

The previous prime is 72917231226311. The next prime is 72917231226383. The reversal of 72917231226315 is 51362213271927.

It is not a de Polignac number, because 72917231226315 - 2² = 72917231226311 is a prime.

It is not an unprimeable number, because it can be changed into a prime (72917231226311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 347224910497 + ... + 347224910706.

It is an arithmetic number, because the mean of its divisors is an integer number (8333397854448).

Almost surely, 2^{72917231226315} is an apocalyptic number.

72917231226315 is a deficient number, since it is larger than the sum of its proper divisors (60417134444853).

72917231226315 is a wasteful number, since it uses less digits than its factorization.

72917231226315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 694449821218.

The product of its digits is 1905120, while the sum is 51.

The spelling of 72917231226315 in words is "seventy-two trillion, nine hundred seventeen billion, two hundred thirty-one million, two hundred twenty-six thousand, three hundred fifteen".