19965092634 has 12 divisors (see below), whose sum is σ = 43257700746. Its totient is φ = 6655030872.

The previous prime is 19965092603. The next prime is 19965092677. The reversal of 19965092634 is 43629056991.

19965092634 is a `hidden beast` number, since 19 + 96 + 509 + 2 + 6 + 34 = 666.

It can be written as a sum of positive squares in only one way, i.e., 18432135225 + 1532957409 = 135765^2 + 39153^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 554585889 + ... + 554585924.

Almost surely, 2^19965092634 is an apocalyptic number.

19965092634 is an abundant number, since it is smaller than the sum of its proper divisors (23292608112).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

19965092634 is a wasteful number, since it uses less digits than its factorization.

19965092634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1109171821 (or 1109171818 counting only the distinct ones).

The product of its (nonzero) digits is 3149280, while the sum is 54.

The spelling of 19965092634 in words is "nineteen billion, nine hundred sixty-five million, ninety-two thousand, six hundred thirty-four".