13918256396 has 24 divisors (see below), whose sum is σ = 26656680960. Its totient is φ = 6306131600.

The previous prime is 13918256393. The next prime is 13918256411. The reversal of 13918256396 is 69365281931.

13918256396 = 7129² + 7130² + ... + 7392².

It is a super-2 number, since 2×13918256396² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13918256393) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 494876 + ... + 522243.

It is an arithmetic number, because the mean of its divisors is an integer number (1110695040).

Almost surely, 2^13918256396 is an apocalyptic number.

It is an amenable number.

13918256396 is a deficient number, since it is larger than the sum of its proper divisors (12738424564).

13918256396 is a wasteful number, since it uses less digits than its factorization.

13918256396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1017445 (or 1017443 counting only the distinct ones).

The product of its digits is 2099520, while the sum is 53.

The spelling of 13918256396 in words is "thirteen billion, nine hundred eighteen million, two hundred fifty-six thousand, three hundred ninety-six".