312499999907 has 2 divisors, whose sum is σ = 312499999908. Its totient is φ = 312499999906.

The previous prime is 312499999871. The next prime is 312499999919. The reversal of 312499999907 is 709999994213.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-312499999907 is a prime.

It is not a weakly prime, because it can be changed into another prime (312099999907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156249999953 + 156249999954.

It is an arithmetic number, because the mean of its divisors is an integer number (156249999954).

Almost surely, 2^312499999907 is an apocalyptic number.

312499999907 is a deficient number, since it is larger than the sum of its proper divisors (1).

312499999907 is an equidigital number, since it uses as much as digits as its factorization.

312499999907 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 89282088, while the sum is 71.

The spelling of 312499999907 in words is "three hundred twelve billion, four hundred ninety-nine million, nine hundred ninety-nine thousand, nine hundred seven".