28805164231536 has 240 divisors, whose sum is σ = 105796138256640. Its totient is φ = 7088078638080.

The previous prime is 28805164231489. The next prime is 28805164231559. The reversal of 28805164231536 is 63513246150882.

28805164231536 is a `hidden beast` number, since 2 + 8 + 8 + 0 + 516 + 42 + 31 + 53 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 68154285 + ... + 68575628.

It is an arithmetic number, because the mean of its divisors is an integer number (440817242736).

Almost surely, 2^{28805164231536} is an apocalyptic number.

It is an amenable number.

28805164231536 is an abundant number, since it is smaller than the sum of its proper divisors (76990974025104).

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

28805164231536 is a wasteful number, since it uses less digits than its factorization.

28805164231536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136729964 (or 136729955 counting only the distinct ones).

The product of its (nonzero) digits is 8294400, while the sum is 54.

The spelling of 28805164231536 in words is "twenty-eight trillion, eight hundred five billion, one hundred sixty-four million, two hundred thirty-one thousand, five hundred thirty-six".