191759002090 has 16 divisors (see below), whose sum is σ = 345228350688. Its totient is φ = 76689790416.

The previous prime is 191759002021. The next prime is 191759002133. The reversal of 191759002090 is 90200957191.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1667892 + ... + 1779151.

It is an arithmetic number, because the mean of its divisors is an integer number (21576771918).

Almost surely, 2^191759002090 is an apocalyptic number.

191759002090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

191759002090 is a deficient number, since it is larger than the sum of its proper divisors (153469348598).

191759002090 is a wasteful number, since it uses less digits than its factorization.

191759002090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3452613.

The product of its (nonzero) digits is 51030, while the sum is 43.

The spelling of 191759002090 in words is "one hundred ninety-one billion, seven hundred fifty-nine million, two thousand, ninety".