312460371869 has 4 divisors (see below), whose sum is σ = 312516363900. Its totient is φ = 312404379840.

The previous prime is 312460371827. The next prime is 312460371877. The reversal of 312460371869 is 968173064213.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 968173064213 = 79687 ⋅12149699.

It can be written as a sum of positive squares in 2 ways, for example, as 56995832644 + 255464539225 = 238738^2 + 505435^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-312460371869 is a prime.

It is a super-2 number, since 2×312460371869² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312460377869) 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, 27987644 + ... + 27998805.

It is an arithmetic number, because the mean of its divisors is an integer number (78129090975).

Almost surely, 2^312460371869 is an apocalyptic number.

It is an amenable number.

312460371869 is a deficient number, since it is larger than the sum of its proper divisors (55992031).

312460371869 is an equidigital number, since it uses as much as digits as its factorization.

312460371869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55992030.

The product of its (nonzero) digits is 1306368, while the sum is 50.

The spelling of 312460371869 in words is "three hundred twelve billion, four hundred sixty million, three hundred seventy-one thousand, eight hundred sixty-nine".