10891579911 has 8 divisors (see below), whose sum is σ = 14522855664. Its totient is φ = 7260678720.

The previous prime is 10891579879. The next prime is 10891579927. The reversal of 10891579911 is 11997519801.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 10891579911 - 2⁵ = 10891579879 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10891579961) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16776 + ... + 148541.

It is an arithmetic number, because the mean of its divisors is an integer number (1815356958).

Almost surely, 2^10891579911 is an apocalyptic number.

10891579911 is a deficient number, since it is larger than the sum of its proper divisors (3631275753).

10891579911 is a wasteful number, since it uses less digits than its factorization.

10891579911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187281.

The product of its (nonzero) digits is 204120, while the sum is 51.

The spelling of 10891579911 in words is "ten billion, eight hundred ninety-one million, five hundred seventy-nine thousand, nine hundred eleven".