315654249979 has 2 divisors, whose sum is σ = 315654249980. Its totient is φ = 315654249978.

The previous prime is 315654249959. The next prime is 315654250013. The reversal of 315654249979 is 979942456513.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 315654249979 - 2²⁵ = 315620695547 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 315654249979.

It is not a weakly prime, because it can be changed into another prime (315654249919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157827124989 + 157827124990.

It is an arithmetic number, because the mean of its divisors is an integer number (157827124990).

Almost surely, 2^315654249979 is an apocalyptic number.

315654249979 is a deficient number, since it is larger than the sum of its proper divisors (1).

315654249979 is an equidigital number, since it uses as much as digits as its factorization.

315654249979 is an evil number, because the sum of its binary digits is even.

The product of its digits is 73483200, while the sum is 64.

The spelling of 315654249979 in words is "three hundred fifteen billion, six hundred fifty-four million, two hundred forty-nine thousand, nine hundred seventy-nine".