190457622569 has 2 divisors, whose sum is σ = 190457622570. Its totient is φ = 190457622568.

The previous prime is 190457622529. The next prime is 190457622599. The reversal of 190457622569 is 965226754091.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 142270787344 + 48186835225 = 377188^2 + 219515^2 .

It is a cyclic number.

It is not a de Polignac number, because 190457622569 - 2²⁸ = 190189187113 is a prime.

It is a super-2 number, since 2×190457622569² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (190457622529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95228811284 + 95228811285.

It is an arithmetic number, because the mean of its divisors is an integer number (95228811285).

Almost surely, 2^190457622569 is an apocalyptic number.

It is an amenable number.

190457622569 is a deficient number, since it is larger than the sum of its proper divisors (1).

190457622569 is an equidigital number, since it uses as much as digits as its factorization.

190457622569 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8164800, while the sum is 56.

The spelling of 190457622569 in words is "one hundred ninety billion, four hundred fifty-seven million, six hundred twenty-two thousand, five hundred sixty-nine".