28758046465 has 16 divisors (see below), whose sum is σ = 34596357120. Its totient is φ = 22948699840.

The previous prime is 28758046459. The next prime is 28758046511. The reversal of 28758046465 is 56464085782.

It is not a de Polignac number, because 28758046465 - 2¹³ = 28758038273 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 5207976 + ... + 5213494.

It is an arithmetic number, because the mean of its divisors is an integer number (2162272320).

Almost surely, 2^28758046465 is an apocalyptic number.

It is an amenable number.

28758046465 is a deficient number, since it is larger than the sum of its proper divisors (5838310655).

28758046465 is a wasteful number, since it uses less digits than its factorization.

28758046465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7952.

The product of its (nonzero) digits is 12902400, while the sum is 55.

The spelling of 28758046465 in words is "twenty-eight billion, seven hundred fifty-eight million, forty-six thousand, four hundred sixty-five".