1312636694356 has 48 divisors (see below), whose sum is σ = 2520424368000. Its totient is φ = 594515843712.

The previous prime is 1312636694287. The next prime is 1312636694357. The reversal of 1312636694356 is 6534966362131.

It is a Smith number, since the sum of its digits (55) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 1312636694297 and 1312636694306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312636694357) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 377496 + ... + 1663663.

It is an arithmetic number, because the mean of its divisors is an integer number (52508841000).

Almost surely, 2^{1312636694356} is an apocalyptic number.

It is an amenable number.

1312636694356 is a deficient number, since it is larger than the sum of its proper divisors (1207787673644).

1312636694356 is a wasteful number, since it uses less digits than its factorization.

1312636694356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2041408 (or 2041406 counting only the distinct ones).

The product of its digits is 12597120, while the sum is 55.

The spelling of 1312636694356 in words is "one trillion, three hundred twelve billion, six hundred thirty-six million, six hundred ninety-four thousand, three hundred fifty-six".