19639606707 has 32 divisors (see below), whose sum is σ = 33260994560. Its totient is φ = 11219679360.

The previous prime is 19639606687. The next prime is 19639606717. The reversal of 19639606707 is 70760693691.

19639606707 is a `hidden beast` number, since 196 + 396 + 0 + 67 + 0 + 7 = 666.

It is not a de Polignac number, because 19639606707 - 2¹⁵ = 19639573939 is a prime.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19639606717) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 850638 + ... + 873420.

It is an arithmetic number, because the mean of its divisors is an integer number (1039406080).

Almost surely, 2^19639606707 is an apocalyptic number.

19639606707 is a deficient number, since it is larger than the sum of its proper divisors (13621387853).

19639606707 is a wasteful number, since it uses less digits than its factorization.

19639606707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27360 (or 27354 counting only the distinct ones).

The product of its (nonzero) digits is 2571912, while the sum is 54.

The spelling of 19639606707 in words is "nineteen billion, six hundred thirty-nine million, six hundred six thousand, seven hundred seven".