312345371797 has 4 divisors (see below), whose sum is σ = 312367386796. Its totient is φ = 312323356800.

The previous prime is 312345371783. The next prime is 312345371801. The reversal of 312345371797 is 797173543213.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 303038139121 + 9307232676 = 550489^2 + 96474^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-312345371797 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 (312345371717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10986204 + ... + 11014597.

It is an arithmetic number, because the mean of its divisors is an integer number (78091846699).

Almost surely, 2^312345371797 is an apocalyptic number.

It is an amenable number.

312345371797 is a deficient number, since it is larger than the sum of its proper divisors (22014999).

312345371797 is a wasteful number, since it uses less digits than its factorization.

312345371797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22014998.

The product of its digits is 3333960, while the sum is 52.

The spelling of 312345371797 in words is "three hundred twelve billion, three hundred forty-five million, three hundred seventy-one thousand, seven hundred ninety-seven".