1318456469513 has 4 divisors (see below), whose sum is σ = 1318576482000. Its totient is φ = 1318336457028.

The previous prime is 1318456469483. The next prime is 1318456469527. The reversal of 1318456469513 is 3159646548131.

It is a happy number.

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 a de Polignac number, because none of the positive numbers 2^k-1318456469513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1318456469563) 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, 59989763 + ... + 60011736.

It is an arithmetic number, because the mean of its divisors is an integer number (329644120500).

Almost surely, 2^{1318456469513} is an apocalyptic number.

It is an amenable number.

1318456469513 is a deficient number, since it is larger than the sum of its proper divisors (120012487).

1318456469513 is a wasteful number, since it uses less digits than its factorization.

1318456469513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120012486.

The product of its digits is 9331200, while the sum is 56.

The spelling of 1318456469513 in words is "one trillion, three hundred eighteen billion, four hundred fifty-six million, four hundred sixty-nine thousand, five hundred thirteen".