20192910907 has 16 divisors (see below), whose sum is σ = 22292571168. Its totient is φ = 18175622400.

The previous prime is 20192910869. The next prime is 20192910923. The reversal of 20192910907 is 70901929102.

It is a happy number.

It is not a de Polignac number, because 20192910907 - 2¹¹ = 20192908859 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20192910907.

It is not an unprimeable number, because it can be changed into a prime (20192910967) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22407 + ... + 202207.

It is an arithmetic number, because the mean of its divisors is an integer number (1393285698).

Almost surely, 2^20192910907 is an apocalyptic number.

20192910907 is a deficient number, since it is larger than the sum of its proper divisors (2099660261).

20192910907 is a wasteful number, since it uses less digits than its factorization.

20192910907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180030.

The product of its (nonzero) digits is 20412, while the sum is 40.

The spelling of 20192910907 in words is "twenty billion, one hundred ninety-two million, nine hundred ten thousand, nine hundred seven".