28357688854 has 64 divisors (see below), whose sum is σ = 47932093440. Its totient is φ = 12472462080.

The previous prime is 28357688833. The next prime is 28357688861. The reversal of 28357688854 is 45888675382.

It is a congruent number.

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, 49837482 + ... + 49838050.

It is an arithmetic number, because the mean of its divisors is an integer number (748938960).

Almost surely, 2^28357688854 is an apocalyptic number.

28357688854 is a deficient number, since it is larger than the sum of its proper divisors (19574404586).

28357688854 is a wasteful number, since it uses less digits than its factorization.

28357688854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1093.

The product of its digits is 103219200, while the sum is 64.

The spelling of 28357688854 in words is "twenty-eight billion, three hundred fifty-seven million, six hundred eighty-eight thousand, eight hundred fifty-four".