28926905375 has 16 divisors (see below), whose sum is σ = 36124596768. Its totient is φ = 23126256000.

The previous prime is 28926905363. The next prime is 28926905383. The reversal of 28926905375 is 57350962982.

It is a de Polignac number, because none of the positive numbers 2^k-28926905375 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 28926905375.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 115799 + ... + 266951.

It is an arithmetic number, because the mean of its divisors is an integer number (2257787298).

Almost surely, 2^28926905375 is an apocalyptic number.

28926905375 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

28926905375 is a deficient number, since it is larger than the sum of its proper divisors (7197691393).

28926905375 is a wasteful number, since it uses less digits than its factorization.

28926905375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152699 (or 152689 counting only the distinct ones).

The product of its (nonzero) digits is 8164800, while the sum is 56.

The spelling of 28926905375 in words is "twenty-eight billion, nine hundred twenty-six million, nine hundred five thousand, three hundred seventy-five".