13257569451 has 16 divisors (see below), whose sum is σ = 20203733504. Its totient is φ = 7575107904.

The previous prime is 13257569293. The next prime is 13257569471. The reversal of 13257569451 is 15496575231.

It is a de Polignac number, because none of the positive numbers 2^k-13257569451 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13257569451.

It is not an unprimeable number, because it can be changed into a prime (13257569471) 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, 344106 + ... + 380688.

It is an arithmetic number, because the mean of its divisors is an integer number (1262733344).

Almost surely, 2^13257569451 is an apocalyptic number.

13257569451 is a deficient number, since it is larger than the sum of its proper divisors (6946164053).

13257569451 is a wasteful number, since it uses less digits than its factorization.

13257569451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53850.

The product of its digits is 1134000, while the sum is 48.

The spelling of 13257569451 in words is "thirteen billion, two hundred fifty-seven million, five hundred sixty-nine thousand, four hundred fifty-one".