13281707957 has 16 divisors (see below), whose sum is σ = 15511841280. Its totient is φ = 11135067648.

The previous prime is 13281707911. The next prime is 13281707969. The reversal of 13281707957 is 75970718231.

It is a cyclic number.

It is not a de Polignac number, because 13281707957 - 2⁶ = 13281707893 is a prime.

It is a super-2 number, since 2×13281707957² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13281707557) 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, 546419 + ... + 570207.

It is an arithmetic number, because the mean of its divisors is an integer number (969490080).

Almost surely, 2^13281707957 is an apocalyptic number.

It is an amenable number.

13281707957 is a deficient number, since it is larger than the sum of its proper divisors (2230133323).

13281707957 is a wasteful number, since it uses less digits than its factorization.

13281707957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25540.

The product of its (nonzero) digits is 740880, while the sum is 50.

The spelling of 13281707957 in words is "thirteen billion, two hundred eighty-one million, seven hundred seven thousand, nine hundred fifty-seven".