11926726461 has 24 divisors (see below), whose sum is σ = 18584398560. Its totient is φ = 7326978336.

The previous prime is 11926726457. The next prime is 11926726477. The reversal of 11926726461 is 16462762911.

11926726461 is a `hidden beast` number, since 119 + 2 + 6 + 72 + 6 + 461 = 666.

It is not a de Polignac number, because 11926726461 - 2² = 11926726457 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11926726961) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18151 + ... + 155508.

It is an arithmetic number, because the mean of its divisors is an integer number (774349940).

Almost surely, 2^11926726461 is an apocalyptic number.

It is an amenable number.

11926726461 is a deficient number, since it is larger than the sum of its proper divisors (6657672099).

11926726461 is a wasteful number, since it uses less digits than its factorization.

11926726461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174265 (or 174262 counting only the distinct ones).

The product of its digits is 217728, while the sum is 45.

The spelling of 11926726461 in words is "eleven billion, nine hundred twenty-six million, seven hundred twenty-six thousand, four hundred sixty-one".