39838194145 has 16 divisors (see below), whose sum is σ = 50627420928. Its totient is φ = 29990199040.

The previous prime is 39838194103. The next prime is 39838194163. The reversal of 39838194145 is 54149183893.

It is a happy number.

It is not a de Polignac number, because 39838194145 - 2⁷ = 39838194017 is a prime.

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, 444402 + ... + 526468.

It is an arithmetic number, because the mean of its divisors is an integer number (3164213808).

Almost surely, 2^39838194145 is an apocalyptic number.

It is an amenable number.

39838194145 is a deficient number, since it is larger than the sum of its proper divisors (10789226783).

39838194145 is a wasteful number, since it uses less digits than its factorization.

39838194145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87800.

The product of its digits is 3732480, while the sum is 55.

The spelling of 39838194145 in words is "thirty-nine billion, eight hundred thirty-eight million, one hundred ninety-four thousand, one hundred forty-five".