38996839138 has 32 divisors (see below), whose sum is σ = 63524321280. Its totient is φ = 17881981440.

The previous prime is 38996839127. The next prime is 38996839153. The reversal of 38996839138 is 83193869983.

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, 1152895 + ... + 1186237.

It is an arithmetic number, because the mean of its divisors is an integer number (1985135040).

Almost surely, 2^38996839138 is an apocalyptic number.

38996839138 is a deficient number, since it is larger than the sum of its proper divisors (24527482142).

38996839138 is a wasteful number, since it uses less digits than its factorization.

38996839138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34242.

The product of its digits is 60466176, while the sum is 67.

The spelling of 38996839138 in words is "thirty-eight billion, nine hundred ninety-six million, eight hundred thirty-nine thousand, one hundred thirty-eight".