1312793896 has 16 divisors (see below), whose sum is σ = 2503209600. Its totient is φ = 645271344.

The previous prime is 1312793893. The next prime is 1312793897. The reversal of 1312793896 is 6983972131.

It is not an unprimeable number, because it can be changed into a prime (1312793893) 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, 1390200 + ... + 1391143.

It is an arithmetic number, because the mean of its divisors is an integer number (156450600).

Almost surely, 2^1312793896 is an apocalyptic number.

It is an amenable number.

1312793896 is a deficient number, since it is larger than the sum of its proper divisors (1190415704).

1312793896 is a wasteful number, since it uses less digits than its factorization.

1312793896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2781408 (or 2781404 counting only the distinct ones).

The product of its digits is 489888, while the sum is 49.

The square root of 1312793896 is about 36232.4977885875. The cubic root of 1312793896 is about 1094.9615009782.

The spelling of 1312793896 in words is "one billion, three hundred twelve million, seven hundred ninety-three thousand, eight hundred ninety-six".