28945766792131 has 32 divisors (see below), whose sum is σ = 35090794408320. Its totient is φ = 23308563456000.

The previous prime is 28945766792069. The next prime is 28945766792167. The reversal of 28945766792131 is 13129766754982.

It is not a de Polignac number, because 28945766792131 - 2⁷ = 28945766792003 is a prime.

It is a super-2 number, since 2×28945766792131² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28945766792431) 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, 491234551 + ... + 491293471.

It is an arithmetic number, because the mean of its divisors is an integer number (1096587325260).

Almost surely, 2^{28945766792131} is an apocalyptic number.

28945766792131 is a deficient number, since it is larger than the sum of its proper divisors (6145027616189).

28945766792131 is a wasteful number, since it uses less digits than its factorization.

28945766792131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66415.

The product of its digits is 274337280, while the sum is 70.

The spelling of 28945766792131 in words is "twenty-eight trillion, nine hundred forty-five billion, seven hundred sixty-six million, seven hundred ninety-two thousand, one hundred thirty-one".