28774576458 has 32 divisors (see below), whose sum is σ = 65503105920. Its totient is φ = 9357585120.

The previous prime is 28774576447. The next prime is 28774576463. The reversal of 28774576458 is 85467547782.

It is a happy number.

28774576458 is a `hidden beast` number, since 2 + 8 + 7 + 7 + 4 + 576 + 4 + 58 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 28774576395 and 28774576404.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6496110 + ... + 6500537.

It is an arithmetic number, because the mean of its divisors is an integer number (2046972060).

Almost surely, 2^28774576458 is an apocalyptic number.

28774576458 is an abundant number, since it is smaller than the sum of its proper divisors (36728529462).

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

28774576458 is a wasteful number, since it uses less digits than its factorization.

28774576458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12996699 (or 12996693 counting only the distinct ones).

The product of its digits is 105369600, while the sum is 63.

The spelling of 28774576458 in words is "twenty-eight billion, seven hundred seventy-four million, five hundred seventy-six thousand, four hundred fifty-eight".