190479379957 has 2 divisors, whose sum is σ = 190479379958. Its totient is φ = 190479379956.

The previous prime is 190479379927. The next prime is 190479379991. The reversal of 190479379957 is 759973974091.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 108917160676 + 81562219281 = 330026^2 + 285591^2 .

It is an emirp because it is prime and its reverse (759973974091) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 190479379957 - 2³⁵ = 156119641589 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (190479379927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95239689978 + 95239689979.

It is an arithmetic number, because the mean of its divisors is an integer number (95239689979).

Almost surely, 2^190479379957 is an apocalyptic number.

It is an amenable number.

190479379957 is a deficient number, since it is larger than the sum of its proper divisors (1).

190479379957 is an equidigital number, since it uses as much as digits as its factorization.

190479379957 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 135025380, while the sum is 70.

The spelling of 190479379957 in words is "one hundred ninety billion, four hundred seventy-nine million, three hundred seventy-nine thousand, nine hundred fifty-seven".