28497179403990 has 48 divisors (see below), whose sum is σ = 80828363403216. Its totient is φ = 6908407128000.

The previous prime is 28497179403983. The next prime is 28497179404007. The reversal of 28497179403990 is 9930497179482.

28497179403990 is a `hidden beast` number, since 2 + 8 + 49 + 7 + 179 + 403 + 9 + 9 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14392513861 + ... + 14392515840.

It is an arithmetic number, because the mean of its divisors is an integer number (1683924237567).

Almost surely, 2^{28497179403990} is an apocalyptic number.

28497179403990 is an abundant number, since it is smaller than the sum of its proper divisors (52331183999226).

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

28497179403990 is a wasteful number, since it uses less digits than its factorization.

28497179403990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28785029725 (or 28785029722 counting only the distinct ones).

The product of its (nonzero) digits is 246903552, while the sum is 72.

The spelling of 28497179403990 in words is "twenty-eight trillion, four hundred ninety-seven billion, one hundred seventy-nine million, four hundred three thousand, nine hundred ninety".