315386814643 has 4 divisors (see below), whose sum is σ = 315388690848. Its totient is φ = 315384938440.

The previous prime is 315386814559. The next prime is 315386814647. The reversal of 315386814643 is 346418683513.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-315386814643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (315386814647) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 658096 + ... + 1031437.

It is an arithmetic number, because the mean of its divisors is an integer number (78847172712).

Almost surely, 2^315386814643 is an apocalyptic number.

315386814643 is a deficient number, since it is larger than the sum of its proper divisors (1876205).

315386814643 is a wasteful number, since it uses less digits than its factorization.

315386814643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1876204.

The product of its digits is 4976640, while the sum is 52.

The spelling of 315386814643 in words is "three hundred fifteen billion, three hundred eighty-six million, eight hundred fourteen thousand, six hundred forty-three".