15091102979 has 4 divisors (see below), whose sum is σ = 15100710600. Its totient is φ = 15081495360.

The previous prime is 15091102973. The next prime is 15091102987. The reversal of 15091102979 is 97920119051.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 97920119051 = 17 ⋅5760007003.

It is a cyclic number.

It is not a de Polignac number, because 15091102979 - 2¹⁶ = 15091037443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15091102973) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4801454 + ... + 4804595.

It is an arithmetic number, because the mean of its divisors is an integer number (3775177650).

Almost surely, 2^15091102979 is an apocalyptic number.

15091102979 is a deficient number, since it is larger than the sum of its proper divisors (9607621).

15091102979 is an equidigital number, since it uses as much as digits as its factorization.

15091102979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9607620.

The product of its (nonzero) digits is 51030, while the sum is 44.

The spelling of 15091102979 in words is "fifteen billion, ninety-one million, one hundred two thousand, nine hundred seventy-nine".