316335621487 has 2 divisors, whose sum is σ = 316335621488. Its totient is φ = 316335621486.

The previous prime is 316335621473. The next prime is 316335621517. The reversal of 316335621487 is 784126533613.

It is a weak prime.

It is an emirp because it is prime and its reverse (784126533613) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-316335621487 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 316335621487.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (316335622487) 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, 158167810743 + 158167810744.

It is an arithmetic number, because the mean of its divisors is an integer number (158167810744).

Almost surely, 2^316335621487 is an apocalyptic number.

316335621487 is a deficient number, since it is larger than the sum of its proper divisors (1).

316335621487 is an equidigital number, since it uses as much as digits as its factorization.

316335621487 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2177280, while the sum is 49.

The spelling of 316335621487 in words is "three hundred sixteen billion, three hundred thirty-five million, six hundred twenty-one thousand, four hundred eighty-seven".