312416632469 has 2 divisors, whose sum is σ = 312416632470. Its totient is φ = 312416632468.

The previous prime is 312416632393. The next prime is 312416632513. The reversal of 312416632469 is 964236614213.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 252543436369 + 59873196100 = 502537^2 + 244690^2 .

It is an emirp because it is prime and its reverse (964236614213) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-312416632469 is a prime.

It is a super-2 number, since 2×312416632469² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (312416652469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156208316234 + 156208316235.

It is an arithmetic number, because the mean of its divisors is an integer number (156208316235).

Almost surely, 2^312416632469 is an apocalyptic number.

It is an amenable number.

312416632469 is a deficient number, since it is larger than the sum of its proper divisors (1).

312416632469 is an equidigital number, since it uses as much as digits as its factorization.

312416632469 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1119744, while the sum is 47.

The spelling of 312416632469 in words is "three hundred twelve billion, four hundred sixteen million, six hundred thirty-two thousand, four hundred sixty-nine".