3838745507258 has 4 divisors (see below), whose sum is σ = 5758118260890. Its totient is φ = 1919372753628.

The previous prime is 3838745507251. The next prime is 3838745507273. The reversal of 3838745507258 is 8527055478383.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2789110423969 + 1049635083289 = 1670063^2 + 1024517^2 .

It is a junction number, because it is equal to n+sod(n) for n = 3838745507194 and 3838745507203.

It is not an unprimeable number, because it can be changed into a prime (3838745507251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 959686376813 + ... + 959686376816.

Almost surely, 2^{3838745507258} is an apocalyptic number.

3838745507258 is a deficient number, since it is larger than the sum of its proper divisors (1919372753632).

3838745507258 is a wasteful number, since it uses less digits than its factorization.

3838745507258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1919372753631.

The product of its (nonzero) digits is 225792000, while the sum is 65.

The spelling of 3838745507258 in words is "three trillion, eight hundred thirty-eight billion, seven hundred forty-five million, five hundred seven thousand, two hundred fifty-eight".