1312763499245 has 32 divisors (see below), whose sum is σ = 1722135638016. Its totient is φ = 952734182400.

The previous prime is 1312763499241. The next prime is 1312763499247. The reversal of 1312763499245 is 5429943672131.

It is not a de Polignac number, because 1312763499245 - 2² = 1312763499241 is a prime.

It is a super-3 number, since 3×1312763499245³ (a number of 37 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (56) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312763499241) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 56653652 + ... + 56676818.

It is an arithmetic number, because the mean of its divisors is an integer number (53816738688).

Almost surely, 2^{1312763499245} is an apocalyptic number.

It is an amenable number.

1312763499245 is a deficient number, since it is larger than the sum of its proper divisors (409372138771).

1312763499245 is a wasteful number, since it uses less digits than its factorization.

1312763499245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25301.

The product of its digits is 9797760, while the sum is 56.

The spelling of 1312763499245 in words is "one trillion, three hundred twelve billion, seven hundred sixty-three million, four hundred ninety-nine thousand, two hundred forty-five".