28624871626 has 64 divisors (see below), whose sum is σ = 49762169856. Its totient is φ = 12231475200.

The previous prime is 28624871603. The next prime is 28624871647. The reversal of 28624871626 is 62617842682.

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, 20115151 + ... + 20116573.

It is an arithmetic number, because the mean of its divisors is an integer number (777533904).

Almost surely, 2^28624871626 is an apocalyptic number.

28624871626 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

28624871626 is a deficient number, since it is larger than the sum of its proper divisors (21137298230).

28624871626 is a wasteful number, since it uses less digits than its factorization.

28624871626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2167.

The product of its digits is 3096576, while the sum is 52.

The spelling of 28624871626 in words is "twenty-eight billion, six hundred twenty-four million, eight hundred seventy-one thousand, six hundred twenty-six".