19713677707 has 4 divisors (see below), whose sum is σ = 19844232016. Its totient is φ = 19583123400.

The previous prime is 19713677701. The next prime is 19713677719. The reversal of 19713677707 is 70777631791.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 19713677707 - 2²⁷ = 19579459979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19713677701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65276928 + ... + 65277229.

It is an arithmetic number, because the mean of its divisors is an integer number (4961058004).

Almost surely, 2^19713677707 is an apocalyptic number.

19713677707 is a deficient number, since it is larger than the sum of its proper divisors (130554309).

19713677707 is a wasteful number, since it uses less digits than its factorization.

19713677707 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130554308.

The product of its (nonzero) digits is 2722734, while the sum is 55.

The spelling of 19713677707 in words is "nineteen billion, seven hundred thirteen million, six hundred seventy-seven thousand, seven hundred seven".