28809788598 has 24 divisors (see below), whose sum is σ = 62432658288. Its totient is φ = 9601501392.

The previous prime is 28809788587. The next prime is 28809788603. The reversal of 28809788598 is 89588790882.

28809788598 is a `hidden beast` number, since 28 + 8 + 0 + 9 + 7 + 8 + 8 + 598 = 666.

It is a super-2 number, since 2×28809788598² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 43986 + ... + 244037.

It is an arithmetic number, because the mean of its divisors is an integer number (2601360762).

Almost surely, 2^28809788598 is an apocalyptic number.

28809788598 is an abundant number, since it is smaller than the sum of its proper divisors (33622869690).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28809788598 is a wasteful number, since it uses less digits than its factorization.

28809788598 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 293588 (or 293585 counting only the distinct ones).

The product of its (nonzero) digits is 185794560, while the sum is 72.

The spelling of 28809788598 in words is "twenty-eight billion, eight hundred nine million, seven hundred eighty-eight thousand, five hundred ninety-eight".