38239734836 has 12 divisors (see below), whose sum is σ = 67582106340. Its totient is φ = 18930561600.

The previous prime is 38239734833. The next prime is 38239734847. The reversal of 38239734836 is 63843793283.

It can be written as a sum of positive squares in 2 ways, for example, as 18935411236 + 19304323600 = 137606^2 + 138940^2 .

It is a super-4 number, since 4×38239734836⁴ (a number of 43 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38239734833) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47326001 + ... + 47326808.

It is an arithmetic number, because the mean of its divisors is an integer number (5631842195).

Almost surely, 2^38239734836 is an apocalyptic number.

It is an amenable number.

38239734836 is a deficient number, since it is larger than the sum of its proper divisors (29342371504).

38239734836 is a wasteful number, since it uses less digits than its factorization.

38239734836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94652914 (or 94652912 counting only the distinct ones).

The product of its digits is 15676416, while the sum is 56.

The spelling of 38239734836 in words is "thirty-eight billion, two hundred thirty-nine million, seven hundred thirty-four thousand, eight hundred thirty-six".