28152257315 has 64 divisors (see below), whose sum is σ = 42893921280. Its totient is φ = 17264586240.

The previous prime is 28152257311. The next prime is 28152257333. The reversal of 28152257315 is 51375225182.

It is not a de Polignac number, because 28152257315 - 2² = 28152257311 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28152257311) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1852016 + ... + 1867154.

It is an arithmetic number, because the mean of its divisors is an integer number (670217520).

Almost surely, 2^28152257315 is an apocalyptic number.

28152257315 is a deficient number, since it is larger than the sum of its proper divisors (14741663965).

28152257315 is a wasteful number, since it uses less digits than its factorization.

28152257315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15292.

The product of its digits is 168000, while the sum is 41.

The spelling of 28152257315 in words is "twenty-eight billion, one hundred fifty-two million, two hundred fifty-seven thousand, three hundred fifteen".