28579931136 has 165 divisors, whose sum is σ = 85490901859. Its totient is φ = 9510414336.

The previous prime is 28579931129. The next prime is 28579931183. The reversal of 28579931136 is 63113997582.

The square root of 28579931136 is 169056.

It is a perfect power (a square), and thus also a powerful number.

28579931136 is a `hidden beast` number, since 2 + 8 + 579 + 9 + 31 + 1 + 36 = 666.

It is a super-3 number, since 3×28579931136³ (a number of 32 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 48687835 + ... + 48688421.

Almost surely, 2^28579931136 is an apocalyptic number.

28579931136 is the 169056-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28579931136

28579931136 is an abundant number, since it is smaller than the sum of its proper divisors (56910970723).

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

28579931136 is an frugal number, since it uses more digits than its factorization.

28579931136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1206 (or 592 counting only the distinct ones).

The product of its digits is 2449440, while the sum is 54.

The spelling of 28579931136 in words is "twenty-eight billion, five hundred seventy-nine million, nine hundred thirty-one thousand, one hundred thirty-six".