28107523028 has 48 divisors (see below), whose sum is σ = 54965016960. Its totient is φ = 12487305600.

The previous prime is 28107523001. The next prime is 28107523043. The reversal of 28107523028 is 82032570182.

It is a junction number, because it is equal to n+sod(n) for n = 28107522982 and 28107523000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 470993 + ... + 527303.

It is an arithmetic number, because the mean of its divisors is an integer number (1145104520).

Almost surely, 2^28107523028 is an apocalyptic number.

It is an amenable number.

28107523028 is a deficient number, since it is larger than the sum of its proper divisors (26857493932).

28107523028 is a wasteful number, since it uses less digits than its factorization.

28107523028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56688 (or 56686 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 38.

The spelling of 28107523028 in words is "twenty-eight billion, one hundred seven million, five hundred twenty-three thousand, twenty-eight".