11911261934 has 16 divisors (see below), whose sum is σ = 20990476080. Its totient is φ = 4997732160.

The previous prime is 11911261909. The next prime is 11911261961. The reversal of 11911261934 is 43916211911.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20823599 + ... + 20824170.

It is an arithmetic number, because the mean of its divisors is an integer number (1311904755).

Almost surely, 2^11911261934 is an apocalyptic number.

11911261934 is a deficient number, since it is larger than the sum of its proper divisors (9079214146).

11911261934 is a wasteful number, since it uses less digits than its factorization.

11911261934 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41647795.

The product of its digits is 11664, while the sum is 38.

The spelling of 11911261934 in words is "eleven billion, nine hundred eleven million, two hundred sixty-one thousand, nine hundred thirty-four".