319681949916 has 48 divisors (see below), whose sum is σ = 859197710336. Its totient is φ = 90618502464.

The previous prime is 319681949897. The next prime is 319681949927. The reversal of 319681949916 is 619949186913.

319681949916 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14972551 + ... + 14993886.

Almost surely, 2^319681949916 is an apocalyptic number.

It is an amenable number.

319681949916 is an abundant number, since it is smaller than the sum of its proper divisors (539515760420).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

319681949916 is a wasteful number, since it uses less digits than its factorization.

319681949916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29966578 (or 29966576 counting only the distinct ones).

The product of its digits is 22674816, while the sum is 66.

The spelling of 319681949916 in words is "three hundred nineteen billion, six hundred eighty-one million, nine hundred forty-nine thousand, nine hundred sixteen".