11919508634 has 16 divisors (see below), whose sum is σ = 20031804576. Its totient is φ = 5271526800.

The previous prime is 11919508543. The next prime is 11919508721. The reversal of 11919508634 is 43680591911.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7320752 + ... + 7322379.

It is an arithmetic number, because the mean of its divisors is an integer number (1251987786).

Almost surely, 2^11919508634 is an apocalyptic number.

11919508634 is a deficient number, since it is larger than the sum of its proper divisors (8112295942).

11919508634 is a wasteful number, since it uses less digits than its factorization.

11919508634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14643181.

The product of its (nonzero) digits is 233280, while the sum is 47.

The spelling of 11919508634 in words is "eleven billion, nine hundred nineteen million, five hundred eight thousand, six hundred thirty-four".