312216827719 has 2 divisors, whose sum is σ = 312216827720. Its totient is φ = 312216827718.

The previous prime is 312216827603. The next prime is 312216827729. The reversal of 312216827719 is 917728612213.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 312216827719 - 2¹³ = 312216819527 is a prime.

It is a super-2 number, since 2×312216827719² (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 (312216827729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156108413859 + 156108413860.

It is an arithmetic number, because the mean of its divisors is an integer number (156108413860).

Almost surely, 2^312216827719 is an apocalyptic number.

312216827719 is a deficient number, since it is larger than the sum of its proper divisors (1).

312216827719 is an equidigital number, since it uses as much as digits as its factorization.

312216827719 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 508032, while the sum is 49.

The spelling of 312216827719 in words is "three hundred twelve billion, two hundred sixteen million, eight hundred twenty-seven thousand, seven hundred nineteen".