28107522979 has 2 divisors, whose sum is σ = 28107522980. Its totient is φ = 28107522978.

The previous prime is 28107522943. The next prime is 28107523001. The reversal of 28107522979 is 97922570182.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28107522979 - 2²⁵ = 28073968547 is a prime.

It is not a weakly prime, because it can be changed into another prime (28107522479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14053761489 + 14053761490.

It is an arithmetic number, because the mean of its divisors is an integer number (14053761490).

Almost surely, 2^28107522979 is an apocalyptic number.

28107522979 is a deficient number, since it is larger than the sum of its proper divisors (1).

28107522979 is an equidigital number, since it uses as much as digits as its factorization.

28107522979 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1270080, while the sum is 52.

The spelling of 28107522979 in words is "twenty-eight billion, one hundred seven million, five hundred twenty-two thousand, nine hundred seventy-nine".