28252343875 has 32 divisors (see below), whose sum is σ = 40476893184. Its totient is φ = 19286028000.

The previous prime is 28252343851. The next prime is 28252343881. The reversal of 28252343875 is 57834325282.

It is not a de Polignac number, because 28252343875 - 2⁷ = 28252343747 is a prime.

It is a super-3 number, since 3×28252343875³ (a number of 32 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 122730 + ... + 267520.

It is an arithmetic number, because the mean of its divisors is an integer number (1264902912).

Almost surely, 2^28252343875 is an apocalyptic number.

28252343875 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

28252343875 is a deficient number, since it is larger than the sum of its proper divisors (12224549309).

28252343875 is a wasteful number, since it uses less digits than its factorization.

28252343875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145036 (or 145026 counting only the distinct ones).

The product of its digits is 3225600, while the sum is 49.

The spelling of 28252343875 in words is "twenty-eight billion, two hundred fifty-two million, three hundred forty-three thousand, eight hundred seventy-five".