312491610479 has 2 divisors, whose sum is σ = 312491610480. Its totient is φ = 312491610478.

The previous prime is 312491610439. The next prime is 312491610491. The reversal of 312491610479 is 974016194213.

It is a strong prime.

It is an emirp because it is prime and its reverse (974016194213) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-312491610479 is a prime.

It is a super-3 number, since 3×312491610479³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (312491610439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156245805239 + 156245805240.

It is an arithmetic number, because the mean of its divisors is an integer number (156245805240).

Almost surely, 2^312491610479 is an apocalyptic number.

312491610479 is a deficient number, since it is larger than the sum of its proper divisors (1).

312491610479 is an equidigital number, since it uses as much as digits as its factorization.

312491610479 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 326592, while the sum is 47.

The spelling of 312491610479 in words is "three hundred twelve billion, four hundred ninety-one million, six hundred ten thousand, four hundred seventy-nine".