187922796961 has 2 divisors, whose sum is σ = 187922796962. Its totient is φ = 187922796960.

The previous prime is 187922796923. The next prime is 187922796967. The reversal of 187922796961 is 169697229781.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 125152505361 + 62770291600 = 353769^2 + 250540^2 .

It is a cyclic number.

It is not a de Polignac number, because 187922796961 - 2²⁵ = 187889242529 is a prime.

It is not a weakly prime, because it can be changed into another prime (187922796967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 93961398480 + 93961398481.

It is an arithmetic number, because the mean of its divisors is an integer number (93961398481).

Almost surely, 2^187922796961 is an apocalyptic number.

It is an amenable number.

187922796961 is a deficient number, since it is larger than the sum of its proper divisors (1).

187922796961 is an equidigital number, since it uses as much as digits as its factorization.

187922796961 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 41150592, while the sum is 67.

The spelling of 187922796961 in words is "one hundred eighty-seven billion, nine hundred twenty-two million, seven hundred ninety-six thousand, nine hundred sixty-one".