13079581957 has 4 divisors (see below), whose sum is σ = 14085703660. Its totient is φ = 12073460256.

The previous prime is 13079581951. The next prime is 13079581979. The reversal of 13079581957 is 75918597031.

It is a Cunningham number, because it is equal to 114366²+1.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1934768196 + 11144813761 = 43986^2 + 105569^2 .

It is a de Polignac number, because none of the positive numbers 2^k-13079581957 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13079581898 and 13079581907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13079581951) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 503060832 + ... + 503060857.

It is an arithmetic number, because the mean of its divisors is an integer number (3521425915).

Almost surely, 2^13079581957 is an apocalyptic number.

It is an amenable number.

13079581957 is a deficient number, since it is larger than the sum of its proper divisors (1006121703).

13079581957 is a wasteful number, since it uses less digits than its factorization.

13079581957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1006121702.

The product of its (nonzero) digits is 2381400, while the sum is 55.

The spelling of 13079581957 in words is "thirteen billion, seventy-nine million, five hundred eighty-one thousand, nine hundred fifty-seven".