312242598389 has 4 divisors (see below), whose sum is σ = 312279225024. Its totient is φ = 312205971756.

The previous prime is 312242598361. The next prime is 312242598397. The reversal of 312242598389 is 983895242213.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 312242598389 - 2⁸ = 312242598133 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 (312242598989) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18300527 + ... + 18317580.

It is an arithmetic number, because the mean of its divisors is an integer number (78069806256).

Almost surely, 2^312242598389 is an apocalyptic number.

It is an amenable number.

312242598389 is a deficient number, since it is larger than the sum of its proper divisors (36626635).

312242598389 is an equidigital number, since it uses as much as digits as its factorization.

312242598389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36626634.

The product of its digits is 7464960, while the sum is 56.

The spelling of 312242598389 in words is "three hundred twelve billion, two hundred forty-two million, five hundred ninety-eight thousand, three hundred eighty-nine".