3938765858 has 16 divisors (see below), whose sum is σ = 6053109216. Its totient is φ = 1921177440.

The previous prime is 3938765851. The next prime is 3938765899. The reversal of 3938765858 is 8585678393.

It is a self number, because there is not a number n which added to its sum of digits gives 3938765858.

It is not an unprimeable number, because it can be changed into a prime (3938765851) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41510 + ... + 97982.

It is an arithmetic number, because the mean of its divisors is an integer number (378319326).

Almost surely, 2^3938765858 is an apocalyptic number.

3938765858 is a deficient number, since it is larger than the sum of its proper divisors (2114343358).

3938765858 is a wasteful number, since it uses less digits than its factorization.

3938765858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57329.

The product of its digits is 43545600, while the sum is 62.

The square root of 3938765858 is about 62759.5877774862. The cubic root of 3938765858 is about 1579.2591006342.

The spelling of 3938765858 in words is "three billion, nine hundred thirty-eight million, seven hundred sixty-five thousand, eight hundred fifty-eight".