19989314907 has 16 divisors (see below), whose sum is σ = 27100051200. Its totient is φ = 13102567200.

The previous prime is 19989314893. The next prime is 19989314923. The reversal of 19989314907 is 70941398991.

It is a happy number.

It is not a de Polignac number, because 19989314907 - 2²⁴ = 19972537691 is a prime.

It is not an unprimeable number, because it can be changed into a prime (19989314207) 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, 473682 + ... + 514152.

It is an arithmetic number, because the mean of its divisors is an integer number (1693753200).

Almost surely, 2^19989314907 is an apocalyptic number.

19989314907 is a deficient number, since it is larger than the sum of its proper divisors (7110736293).

19989314907 is a wasteful number, since it uses less digits than its factorization.

19989314907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43234.

The product of its (nonzero) digits is 4408992, while the sum is 60.

The spelling of 19989314907 in words is "nineteen billion, nine hundred eighty-nine million, three hundred fourteen thousand, nine hundred seven".