190831272693361 has 2 divisors, whose sum is σ = 190831272693362. Its totient is φ = 190831272693360.

The previous prime is 190831272693319. The next prime is 190831272693389. The reversal of 190831272693361 is 163396272138091.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 186452716443361 + 4378556250000 = 13654769^2 + 2092500^2 .

It is a cyclic number.

It is not a de Polignac number, because 190831272693361 - 2¹⁹ = 190831272169073 is a prime.

It is a super-2 number, since 2×190831272693361² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 190831272693361.

It is not a weakly prime, because it can be changed into another prime (190831272690361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95415636346680 + 95415636346681.

It is an arithmetic number, because the mean of its divisors is an integer number (95415636346681).

Almost surely, 2^{190831272693361} is an apocalyptic number.

It is an amenable number.

190831272693361 is a deficient number, since it is larger than the sum of its proper divisors (1).

190831272693361 is an equidigital number, since it uses as much as digits as its factorization.

190831272693361 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17635968, while the sum is 61.

The spelling of 190831272693361 in words is "one hundred ninety trillion, eight hundred thirty-one billion, two hundred seventy-two million, six hundred ninety-three thousand, three hundred sixty-one".