28812351275 has 24 divisors (see below), whose sum is σ = 38189993184. Its totient is φ = 21509945600.

The previous prime is 28812351263. The next prime is 28812351313. The reversal of 28812351275 is 57215321882.

It is not a de Polignac number, because 28812351275 - 2⁸ = 28812351019 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 587504 + ... + 634653.

It is an arithmetic number, because the mean of its divisors is an integer number (1591249716).

Almost surely, 2^28812351275 is an apocalyptic number.

28812351275 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

28812351275 is a deficient number, since it is larger than the sum of its proper divisors (9377641909).

28812351275 is a wasteful number, since it uses less digits than its factorization.

28812351275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1222231 (or 1222226 counting only the distinct ones).

The product of its digits is 268800, while the sum is 44.

The spelling of 28812351275 in words is "twenty-eight billion, eight hundred twelve million, three hundred fifty-one thousand, two hundred seventy-five".