10315219979 has 2 divisors, whose sum is σ = 10315219980. Its totient is φ = 10315219978.

The previous prime is 10315219951. The next prime is 10315220009. The reversal of 10315219979 is 97991251301.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10315219979 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (10315219949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5157609989 + 5157609990.

It is an arithmetic number, because the mean of its divisors is an integer number (5157609990).

Almost surely, 2^10315219979 is an apocalyptic number.

10315219979 is a deficient number, since it is larger than the sum of its proper divisors (1).

10315219979 is an equidigital number, since it uses as much as digits as its factorization.

10315219979 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 153090, while the sum is 47.

The spelling of 10315219979 in words is "ten billion, three hundred fifteen million, two hundred nineteen thousand, nine hundred seventy-nine".