28973976579 has 12 divisors (see below), whose sum is σ = 41855516976. Its totient is φ = 19314037872.

The previous prime is 28973976487. The next prime is 28973976593. The reversal of 28973976579 is 97567937982.

28973976579 is a `hidden beast` number, since 28 + 97 + 397 + 65 + 79 = 666.

It is not a de Polignac number, because 28973976579 - 2¹⁵ = 28973943811 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28973976379) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 64864 + ... + 249309.

It is an arithmetic number, because the mean of its divisors is an integer number (3487959748).

Almost surely, 2^28973976579 is an apocalyptic number.

28973976579 is a deficient number, since it is larger than the sum of its proper divisors (12881540397).

28973976579 is a wasteful number, since it uses less digits than its factorization.

28973976579 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324426 (or 324423 counting only the distinct ones).

The product of its digits is 360067680, while the sum is 72.

The spelling of 28973976579 in words is "twenty-eight billion, nine hundred seventy-three million, nine hundred seventy-six thousand, five hundred seventy-nine".