190790874793 has 2 divisors, whose sum is σ = 190790874794. Its totient is φ = 190790874792.

The previous prime is 190790874751. The next prime is 190790874817. The reversal of 190790874793 is 397478097091.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 161381368729 + 29409506064 = 401723^2 + 171492^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-190790874793 is a prime.

It is not a weakly prime, because it can be changed into another prime (190790874713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95395437396 + 95395437397.

It is an arithmetic number, because the mean of its divisors is an integer number (95395437397).

Almost surely, 2^190790874793 is an apocalyptic number.

It is an amenable number.

190790874793 is a deficient number, since it is larger than the sum of its proper divisors (1).

190790874793 is an equidigital number, since it uses as much as digits as its factorization.

190790874793 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24004512, while the sum is 64.

The spelling of 190790874793 in words is "one hundred ninety billion, seven hundred ninety million, eight hundred seventy-four thousand, seven hundred ninety-three".