28357427884 has 6 divisors (see below), whose sum is σ = 49625498804. Its totient is φ = 14178713940.

The previous prime is 28357427873. The next prime is 28357427899. The reversal of 28357427884 is 48872475382.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3544678482 + ... + 3544678489.

Almost surely, 2^28357427884 is an apocalyptic number.

It is an amenable number.

28357427884 is a deficient number, since it is larger than the sum of its proper divisors (21268070920).

28357427884 is a wasteful number, since it uses less digits than its factorization.

28357427884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7089356975 (or 7089356973 counting only the distinct ones).

The product of its digits is 24084480, while the sum is 58.

The spelling of 28357427884 in words is "twenty-eight billion, three hundred fifty-seven million, four hundred twenty-seven thousand, eight hundred eighty-four".