13757889681 has 24 divisors (see below), whose sum is σ = 20805482880. Its totient is φ = 8748944736.

The previous prime is 13757889643. The next prime is 13757889697. The reversal of 13757889681 is 18698875731.

It is not a de Polignac number, because 13757889681 - 2⁶ = 13757889617 is a prime.

It is a super-2 number, since 2×13757889681² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13757889601) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 295881 + ... + 339206.

It is an arithmetic number, because the mean of its divisors is an integer number (866895120).

Almost surely, 2^13757889681 is an apocalyptic number.

It is an amenable number.

13757889681 is a deficient number, since it is larger than the sum of its proper divisors (7047593199).

13757889681 is a wasteful number, since it uses less digits than its factorization.

13757889681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 635205 (or 635202 counting only the distinct ones).

The product of its digits is 20321280, while the sum is 63.

The spelling of 13757889681 in words is "thirteen billion, seven hundred fifty-seven million, eight hundred eighty-nine thousand, six hundred eighty-one".