13319757897 has 4 divisors (see below), whose sum is σ = 17759677200. Its totient is φ = 8879838596.

The previous prime is 13319757883. The next prime is 13319757917. The reversal of 13319757897 is 79875791331.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13319757897 - 2¹⁶ = 13319692361 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13319757897.

It is not an unprimeable number, because it can be changed into a prime (13319757497) 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, 2219959647 + ... + 2219959652.

It is an arithmetic number, because the mean of its divisors is an integer number (4439919300).

Almost surely, 2^13319757897 is an apocalyptic number.

It is an amenable number.

13319757897 is a deficient number, since it is larger than the sum of its proper divisors (4439919303).

13319757897 is an equidigital number, since it uses as much as digits as its factorization.

13319757897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4439919302.

The product of its digits is 10001880, while the sum is 60.

The spelling of 13319757897 in words is "thirteen billion, three hundred nineteen million, seven hundred fifty-seven thousand, eight hundred ninety-seven".