190690295761 has 9 divisors (see below), whose sum is σ = 221826961161. Its totient is φ = 163446204852.

The previous prime is 190690295759. The next prime is 190690295771. The reversal of 190690295761 is 167592096091.

The square root of 190690295761 is 436681.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 190690295761 - 2¹ = 190690295759 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (190690295701) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 3025576 + ... + 3087958.

It is an arithmetic number, because the mean of its divisors is an integer number (24647440129).

Almost surely, 2^190690295761 is an apocalyptic number.

190690295761 is the 436681-st square number.

190690295761 is the 218341-st centered octagonal number.

It is an amenable number.

190690295761 is a deficient number, since it is larger than the sum of its proper divisors (31136665400).

190690295761 is an frugal number, since it uses more digits than its factorization.

190690295761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124780 (or 62390 counting only the distinct ones).

The product of its (nonzero) digits is 1837080, while the sum is 55.

The spelling of 190690295761 in words is "one hundred ninety billion, six hundred ninety million, two hundred ninety-five thousand, seven hundred sixty-one".