1312925978376 has 80 divisors (see below), whose sum is σ = 3678631981200. Its totient is φ = 437496378336.

The previous prime is 1312925978369. The next prime is 1312925978381. The reversal of 1312925978376 is 6738795292131.

1312925978376 is a `hidden beast` number, since 1 + 3 + 1 + 2 + 9 + 2 + 597 + 8 + 37 + 6 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1620751 + ... + 2291873.

It is an arithmetic number, because the mean of its divisors is an integer number (45982899765).

Almost surely, 2^{1312925978376} is an apocalyptic number.

It is an amenable number.

1312925978376 is an abundant number, since it is smaller than the sum of its proper divisors (2365706002824).

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

1312925978376 is a wasteful number, since it uses less digits than its factorization.

1312925978376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 674160 (or 674147 counting only the distinct ones).

The product of its digits is 34292160, while the sum is 63.

The spelling of 1312925978376 in words is "one trillion, three hundred twelve billion, nine hundred twenty-five million, nine hundred seventy-eight thousand, three hundred seventy-six".