190639922969 has 8 divisors (see below), whose sum is σ = 199051525440. Its totient is φ = 182238563056.

The previous prime is 190639922947. The next prime is 190639923011. The reversal of 190639922969 is 969229936091.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 190639922969 - 2¹² = 190639918873 is a prime.

It is a super-2 number, since 2×190639922969² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (190639922939) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2522582 + ... + 2597055.

It is an arithmetic number, because the mean of its divisors is an integer number (24881440680).

Almost surely, 2^190639922969 is an apocalyptic number.

It is an amenable number.

190639922969 is a deficient number, since it is larger than the sum of its proper divisors (8411602471).

190639922969 is a wasteful number, since it uses less digits than its factorization.

190639922969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5121279.

The product of its (nonzero) digits is 25509168, while the sum is 65.

The spelling of 190639922969 in words is "one hundred ninety billion, six hundred thirty-nine million, nine hundred twenty-two thousand, nine hundred sixty-nine".