315719018971 has 2 divisors, whose sum is σ = 315719018972. Its totient is φ = 315719018970.

The previous prime is 315719018969. The next prime is 315719019029. The reversal of 315719018971 is 179810917513.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 315719018971 - 2¹ = 315719018969 is a prime.

Together with 315719018969, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (315719618971) 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, 157859509485 + 157859509486.

It is an arithmetic number, because the mean of its divisors is an integer number (157859509486).

Almost surely, 2^315719018971 is an apocalyptic number.

315719018971 is a deficient number, since it is larger than the sum of its proper divisors (1).

315719018971 is an equidigital number, since it uses as much as digits as its factorization.

315719018971 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 476280, while the sum is 52.

The spelling of 315719018971 in words is "three hundred fifteen billion, seven hundred nineteen million, eighteen thousand, nine hundred seventy-one".