28737840890799 has 32 divisors (see below), whose sum is σ = 44815858752000. Its totient is φ = 18150007804992.

The previous prime is 28737840890743. The next prime is 28737840890833. The reversal of 28737840890799 is 99709804873782.

28737840890799 is a `hidden beast` number, since 2 + 8 + 7 + 37 + 8 + 408 + 90 + 7 + 99 = 666.

It is not a de Polignac number, because 28737840890799 - 2¹³ = 28737840882607 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28737840894799) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 53359542 + ... + 53895420.

It is an arithmetic number, because the mean of its divisors is an integer number (1400495586000).

Almost surely, 2^{28737840890799} is an apocalyptic number.

28737840890799 is a deficient number, since it is larger than the sum of its proper divisors (16078017861201).

28737840890799 is a wasteful number, since it uses less digits than its factorization.

28737840890799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 640444 (or 640438 counting only the distinct ones).

The product of its (nonzero) digits is 3072577536, while the sum is 81.

The spelling of 28737840890799 in words is "twenty-eight trillion, seven hundred thirty-seven billion, eight hundred forty million, eight hundred ninety thousand, seven hundred ninety-nine".