1315109857797 has 16 divisors (see below), whose sum is σ = 1948329042880. Its totient is φ = 876731741136.

The previous prime is 1315109857727. The next prime is 1315109857807. The reversal of 1315109857797 is 7977589015131.

1315109857797 is a `hidden beast` number, since 1 + 3 + 1 + 51 + 0 + 9 + 8 + 577 + 9 + 7 = 666.

It is not a de Polignac number, because 1315109857797 - 2¹⁰ = 1315109856773 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1315109857717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4575078 + ... + 4854024.

It is an arithmetic number, because the mean of its divisors is an integer number (121770565180).

Almost surely, 2^{1315109857797} is an apocalyptic number.

It is an amenable number.

1315109857797 is a deficient number, since it is larger than the sum of its proper divisors (633219185083).

1315109857797 is a wasteful number, since it uses less digits than its factorization.

1315109857797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 453569 (or 453563 counting only the distinct ones).

The product of its (nonzero) digits is 16669800, while the sum is 63.

The spelling of 1315109857797 in words is "one trillion, three hundred fifteen billion, one hundred nine million, eight hundred fifty-seven thousand, seven hundred ninety-seven".