38943889316 has 12 divisors (see below), whose sum is σ = 68300938188. Its totient is φ = 19429335552.

The previous prime is 38943889297. The next prime is 38943889321. The reversal of 38943889316 is 61398834983.

It can be written as a sum of positive squares in 2 ways, for example, as 32795761216 + 6148128100 = 181096^2 + 78410^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10650221 + ... + 10653876.

It is an arithmetic number, because the mean of its divisors is an integer number (5691744849).

Almost surely, 2^38943889316 is an apocalyptic number.

It is an amenable number.

38943889316 is a deficient number, since it is larger than the sum of its proper divisors (29357048872).

38943889316 is a wasteful number, since it uses less digits than its factorization.

38943889316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21304558 (or 21304556 counting only the distinct ones).

The product of its digits is 26873856, while the sum is 62.

The spelling of 38943889316 in words is "thirty-eight billion, nine hundred forty-three million, eight hundred eighty-nine thousand, three hundred sixteen".