11892095981 has 2 divisors, whose sum is σ = 11892095982. Its totient is φ = 11892095980.

The previous prime is 11892095951. The next prime is 11892096001. The reversal of 11892095981 is 18959029811.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9973217956 + 1918878025 = 99866^2 + 43805^2 .

It is a cyclic number.

It is not a de Polignac number, because 11892095981 - 2²² = 11887901677 is a prime.

It is a super-2 number, since 2×11892095981² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11892095951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5946047990 + 5946047991.

It is an arithmetic number, because the mean of its divisors is an integer number (5946047991).

Almost surely, 2^11892095981 is an apocalyptic number.

It is an amenable number.

11892095981 is a deficient number, since it is larger than the sum of its proper divisors (1).

11892095981 is an equidigital number, since it uses as much as digits as its factorization.

11892095981 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 466560, while the sum is 53.

The spelling of 11892095981 in words is "eleven billion, eight hundred ninety-two million, ninety-five thousand, nine hundred eighty-one".