315123331646 has 4 divisors (see below), whose sum is σ = 472684997472. Its totient is φ = 157561665822.

The previous prime is 315123331609. The next prime is 315123331657. The reversal of 315123331646 is 646133321513.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78780832910 + ... + 78780832913.

It is an arithmetic number, because the mean of its divisors is an integer number (118171249368).

Almost surely, 2^315123331646 is an apocalyptic number.

315123331646 is a deficient number, since it is larger than the sum of its proper divisors (157561665826).

315123331646 is a wasteful number, since it uses less digits than its factorization.

315123331646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157561665825.

The product of its digits is 116640, while the sum is 38.

The spelling of 315123331646 in words is "three hundred fifteen billion, one hundred twenty-three million, three hundred thirty-one thousand, six hundred forty-six".