11726170961 has 2 divisors, whose sum is σ = 11726170962. Its totient is φ = 11726170960.

The previous prime is 11726170957. The next prime is 11726170987. The reversal of 11726170961 is 16907162711.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8191155025 + 3535015936 = 90505^2 + 59456^2 .

It is a cyclic number.

It is not a de Polignac number, because 11726170961 - 2² = 11726170957 is a prime.

It is not a weakly prime, because it can be changed into another prime (11726170921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5863085480 + 5863085481.

It is an arithmetic number, because the mean of its divisors is an integer number (5863085481).

Almost surely, 2^11726170961 is an apocalyptic number.

It is an amenable number.

11726170961 is a deficient number, since it is larger than the sum of its proper divisors (1).

11726170961 is an equidigital number, since it uses as much as digits as its factorization.

11726170961 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31752, while the sum is 41.

The spelling of 11726170961 in words is "eleven billion, seven hundred twenty-six million, one hundred seventy thousand, nine hundred sixty-one".