12813481478 has 96 divisors (see below), whose sum is σ = 23993625600. Its totient is φ = 5102165376.

The previous prime is 12813481469. The next prime is 12813481487. The reversal of 12813481478 is 87418431821.

It is an interprime number because it is at equal distance from previous prime (12813481469) and next prime (12813481487).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 27674675 + ... + 27675137.

It is an arithmetic number, because the mean of its divisors is an integer number (249933600).

Almost surely, 2^12813481478 is an apocalyptic number.

12813481478 is a deficient number, since it is larger than the sum of its proper divisors (11180144122).

12813481478 is a wasteful number, since it uses less digits than its factorization.

12813481478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 754 (or 747 counting only the distinct ones).

The product of its digits is 344064, while the sum is 47.

The spelling of 12813481478 in words is "twelve billion, eight hundred thirteen million, four hundred eighty-one thousand, four hundred seventy-eight".