22587131428 has 12 divisors (see below), whose sum is σ = 39764172672. Its totient is φ = 11225939240.

The previous prime is 22587131383. The next prime is 22587131443. The reversal of 22587131428 is 82413178522.

It is a super-2 number, since 2×22587131428² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16905868 + ... + 16907203.

It is an arithmetic number, because the mean of its divisors is an integer number (3313681056).

Almost surely, 2^22587131428 is an apocalyptic number.

It is an amenable number.

22587131428 is a deficient number, since it is larger than the sum of its proper divisors (17177041244).

22587131428 is a wasteful number, since it uses less digits than its factorization.

22587131428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33813242 (or 33813240 counting only the distinct ones).

The product of its digits is 215040, while the sum is 43.

The spelling of 22587131428 in words is "twenty-two billion, five hundred eighty-seven million, one hundred thirty-one thousand, four hundred twenty-eight".