10979155091 has 4 divisors (see below), whose sum is σ = 11111434152. Its totient is φ = 10846876032.

The previous prime is 10979155069. The next prime is 10979155093. The reversal of 10979155091 is 19055197901.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19055197901 = 2243 ⋅8495407.

It is a cyclic number.

It is not a de Polignac number, because 10979155091 - 2⁶ = 10979155027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10979155093) 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, 66139406 + ... + 66139571.

It is an arithmetic number, because the mean of its divisors is an integer number (2777858538).

Almost surely, 2^10979155091 is an apocalyptic number.

10979155091 is a deficient number, since it is larger than the sum of its proper divisors (132279061).

10979155091 is an equidigital number, since it uses as much as digits as its factorization.

10979155091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132279060.

The product of its (nonzero) digits is 127575, while the sum is 47.

The spelling of 10979155091 in words is "ten billion, nine hundred seventy-nine million, one hundred fifty-five thousand, ninety-one".