190559259797 has 4 divisors (see below), whose sum is σ = 190564379820. Its totient is φ = 190554139776.

The previous prime is 190559259773. The next prime is 190559259809. The reversal of 190559259797 is 797952955091.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 133805250436 + 56754009361 = 365794^2 + 238231^2 .

It is a cyclic number.

It is not a de Polignac number, because 190559259797 - 2²⁸ = 190290824341 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190559259097) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2503772 + ... + 2578757.

It is an arithmetic number, because the mean of its divisors is an integer number (47641094955).

Almost surely, 2^190559259797 is an apocalyptic number.

It is an amenable number.

190559259797 is a deficient number, since it is larger than the sum of its proper divisors (5120023).

190559259797 is an equidigital number, since it uses as much as digits as its factorization.

190559259797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5120022.

The product of its (nonzero) digits is 80372250, while the sum is 68.

The spelling of 190559259797 in words is "one hundred ninety billion, five hundred fifty-nine million, two hundred fifty-nine thousand, seven hundred ninety-seven".