190507422817 has 2 divisors, whose sum is σ = 190507422818. Its totient is φ = 190507422816.

The previous prime is 190507422811. The next prime is 190507422827. The reversal of 190507422817 is 718224705091.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 144125770321 + 46381652496 = 379639^2 + 215364^2 .

It is a cyclic number.

It is not a de Polignac number, because 190507422817 - 2²⁷ = 190373205089 is a prime.

It is not a weakly prime, because it can be changed into another prime (190507422811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95253711408 + 95253711409.

It is an arithmetic number, because the mean of its divisors is an integer number (95253711409).

Almost surely, 2^190507422817 is an apocalyptic number.

It is an amenable number.

190507422817 is a deficient number, since it is larger than the sum of its proper divisors (1).

190507422817 is an equidigital number, since it uses as much as digits as its factorization.

190507422817 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 282240, while the sum is 46.

The spelling of 190507422817 in words is "one hundred ninety billion, five hundred seven million, four hundred twenty-two thousand, eight hundred seventeen".