13415731456 has 36 divisors (see below), whose sum is σ = 27943376832. Its totient is φ = 6416216576.

The previous prime is 13415731453. The next prime is 13415731471. The reversal of 13415731456 is 65413751431.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (13415731453) 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, 1133356 + ... + 1145131.

It is an arithmetic number, because the mean of its divisors is an integer number (776204912).

Almost surely, 2^13415731456 is an apocalyptic number.

13415731456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

13415731456 is an abundant number, since it is smaller than the sum of its proper divisors (14527645376).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13415731456 is an equidigital number, since it uses as much as digits as its factorization.

13415731456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2278526 (or 2278512 counting only the distinct ones).

The product of its digits is 151200, while the sum is 40.

The spelling of 13415731456 in words is "thirteen billion, four hundred fifteen million, seven hundred thirty-one thousand, four hundred fifty-six".