28613705104 has 20 divisors (see below), whose sum is σ = 55947672220. Its totient is φ = 14175596160.

The previous prime is 28613705069. The next prime is 28613705173. The reversal of 28613705104 is 40150731682.

It can be written as a sum of positive squares in 2 ways, for example, as 8901545104 + 19712160000 = 94348^2 + 140400^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8201727 + ... + 8205214.

It is an arithmetic number, because the mean of its divisors is an integer number (2797383611).

Almost surely, 2^28613705104 is an apocalyptic number.

It is an amenable number.

28613705104 is a deficient number, since it is larger than the sum of its proper divisors (27333967116).

28613705104 is a wasteful number, since it uses less digits than its factorization.

28613705104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16407058 (or 16407052 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 37.

The spelling of 28613705104 in words is "twenty-eight billion, six hundred thirteen million, seven hundred five thousand, one hundred four".