28737087905 has 8 divisors (see below), whose sum is σ = 34806791232. Its totient is φ = 22774813168.

The previous prime is 28737087889. The next prime is 28737087919. The reversal of 28737087905 is 50978073782.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28737087905 - 2⁴ = 28737087889 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26856557 + ... + 26857626.

It is an arithmetic number, because the mean of its divisors is an integer number (4350848904).

Almost surely, 2^28737087905 is an apocalyptic number.

It is an amenable number.

28737087905 is a deficient number, since it is larger than the sum of its proper divisors (6069703327).

28737087905 is a wasteful number, since it uses less digits than its factorization.

28737087905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53714295.

The product of its (nonzero) digits is 5927040, while the sum is 56.

The spelling of 28737087905 in words is "twenty-eight billion, seven hundred thirty-seven million, eighty-seven thousand, nine hundred five".