1313626078775 has 6 divisors (see below), whose sum is σ = 1628896337712. Its totient is φ = 1050900863000.

The previous prime is 1313626078771. The next prime is 1313626078813. The reversal of 1313626078775 is 5778706263131.

It is not a de Polignac number, because 1313626078775 - 2² = 1313626078771 is a prime.

It is a super-2 number, since 2×1313626078775² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1313626078775.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1313626078771) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 26272521551 + ... + 26272521600.

It is an arithmetic number, because the mean of its divisors is an integer number (271482722952).

Almost surely, 2^{1313626078775} is an apocalyptic number.

1313626078775 is a deficient number, since it is larger than the sum of its proper divisors (315270258937).

1313626078775 is an equidigital number, since it uses as much as digits as its factorization.

1313626078775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52545043161 (or 52545043156 counting only the distinct ones).

The product of its (nonzero) digits is 8890560, while the sum is 56.

The spelling of 1313626078775 in words is "one trillion, three hundred thirteen billion, six hundred twenty-six million, seventy-eight thousand, seven hundred seventy-five".