1312537930769 has 8 divisors (see below), whose sum is σ = 1413532247400. Its totient is φ = 1211547879936.

The previous prime is 1312537930751. The next prime is 1312537930771. The reversal of 1312537930769 is 9670397352131.

It can be written as a sum of positive squares in 4 ways, for example, as 180680254225 + 1131857676544 = 425065^2 + 1063888^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1312537930769 - 2⁸ = 1312537930513 is a prime.

It is a super-2 number, since 2×1312537930769² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1312537930729) 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 7 ways as a sum of consecutive naturals, for example, 412544 + ... + 1671905.

It is an arithmetic number, because the mean of its divisors is an integer number (176691530925).

Almost surely, 2^{1312537930769} is an apocalyptic number.

It is an amenable number.

1312537930769 is a deficient number, since it is larger than the sum of its proper divisors (100994316631).

1312537930769 is a wasteful number, since it uses less digits than its factorization.

1312537930769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2132899.

The product of its (nonzero) digits is 6429780, while the sum is 56.

The spelling of 1312537930769 in words is "one trillion, three hundred twelve billion, five hundred thirty-seven million, nine hundred thirty thousand, seven hundred sixty-nine".