13489057681 has 8 divisors (see below), whose sum is σ = 14717606400. Its totient is φ = 12260887440.

The previous prime is 13489057639. The next prime is 13489057691. The reversal of 13489057681 is 18675098431.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13489057681 is a prime.

It is a super-2 number, since 2×13489057681² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13489057601) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17346 + ... + 165163.

It is an arithmetic number, because the mean of its divisors is an integer number (1839700800).

Almost surely, 2^13489057681 is an apocalyptic number.

13489057681 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

13489057681 is a deficient number, since it is larger than the sum of its proper divisors (1228548719).

13489057681 is a wasteful number, since it uses less digits than its factorization.

13489057681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189239.

The product of its (nonzero) digits is 1451520, while the sum is 52.

The spelling of 13489057681 in words is "thirteen billion, four hundred eighty-nine million, fifty-seven thousand, six hundred eighty-one".