19713677757 has 8 divisors (see below), whose sum is σ = 26302999584. Its totient is φ = 13133403888.

The previous prime is 19713677749. The next prime is 19713677771. The reversal of 19713677757 is 75777631791.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 19713677757 - 2³ = 19713677749 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 19713677757.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19713677777) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2256903 + ... + 2265620.

It is an arithmetic number, because the mean of its divisors is an integer number (3287874948).

Almost surely, 2^19713677757 is an apocalyptic number.

It is an amenable number.

19713677757 is a deficient number, since it is larger than the sum of its proper divisors (6589321827).

19713677757 is a wasteful number, since it uses less digits than its factorization.

19713677757 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4523979.

The product of its digits is 13613670, while the sum is 60.

The spelling of 19713677757 in words is "nineteen billion, seven hundred thirteen million, six hundred seventy-seven thousand, seven hundred fifty-seven".