11731771426 has 32 divisors (see below), whose sum is σ = 18938511360. Its totient is φ = 5433014736.

The previous prime is 11731771367. The next prime is 11731771433. The reversal of 11731771426 is 62417713711.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1938361 + ... + 1944403.

It is an arithmetic number, because the mean of its divisors is an integer number (591828480).

Almost surely, 2^11731771426 is an apocalyptic number.

11731771426 is a deficient number, since it is larger than the sum of its proper divisors (7206739934).

11731771426 is a wasteful number, since it uses less digits than its factorization.

11731771426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7198.

The product of its digits is 49392, while the sum is 40.

The spelling of 11731771426 in words is "eleven billion, seven hundred thirty-one million, seven hundred seventy-one thousand, four hundred twenty-six".