316938356642 has 4 divisors (see below), whose sum is σ = 475407534966. Its totient is φ = 158469178320.

The previous prime is 316938356591. The next prime is 316938356687. The reversal of 316938356642 is 246653839613.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 316891310761 + 47045881 = 562931^2 + 6859^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79234589159 + ... + 79234589162.

Almost surely, 2^316938356642 is an apocalyptic number.

316938356642 is a deficient number, since it is larger than the sum of its proper divisors (158469178324).

316938356642 is a wasteful number, since it uses less digits than its factorization.

316938356642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158469178323.

The product of its digits is 16796160, while the sum is 56.

The spelling of 316938356642 in words is "three hundred sixteen billion, nine hundred thirty-eight million, three hundred fifty-six thousand, six hundred forty-two".