13997768757 has 16 divisors (see below), whose sum is σ = 21331669632. Its totient is φ = 7998073920.

The previous prime is 13997768699. The next prime is 13997768777. The reversal of 13997768757 is 75786779931.

It is not a de Polignac number, because 13997768757 - 2⁸ = 13997768501 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13997768691 and 13997768700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13997768777) 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, 377007 + ... + 412467.

It is an arithmetic number, because the mean of its divisors is an integer number (1333229352).

Almost surely, 2^13997768757 is an apocalyptic number.

It is an amenable number.

13997768757 is a deficient number, since it is larger than the sum of its proper divisors (7333900875).

13997768757 is a wasteful number, since it uses less digits than its factorization.

13997768757 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54268.

The product of its digits is 140026320, while the sum is 69.

The spelling of 13997768757 in words is "thirteen billion, nine hundred ninety-seven million, seven hundred sixty-eight thousand, seven hundred fifty-seven".