28578227124 has 24 divisors (see below), whose sum is σ = 66687376000. Its totient is φ = 9525383424.

The previous prime is 28578227113. The next prime is 28578227131. The reversal of 28578227124 is 42172287582.

It is a super-2 number, since 2×28578227124² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 101877 + ... + 259875.

Almost surely, 2^28578227124 is an apocalyptic number.

It is an amenable number.

28578227124 is an abundant number, since it is smaller than the sum of its proper divisors (38109148876).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28578227124 is a wasteful number, since it uses less digits than its factorization.

28578227124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173079 (or 173077 counting only the distinct ones).

The product of its digits is 1003520, while the sum is 48.

The spelling of 28578227124 in words is "twenty-eight billion, five hundred seventy-eight million, two hundred twenty-seven thousand, one hundred twenty-four".