3681537838 has 8 divisors (see below), whose sum is σ = 6024334680. Its totient is φ = 1673426280.

The previous prime is 3681537829. The next prime is 3681537841. The reversal of 3681537838 is 8387351863.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83671293 + ... + 83671336.

It is an arithmetic number, because the mean of its divisors is an integer number (753041835).

Almost surely, 2^3681537838 is an apocalyptic number.

3681537838 is a deficient number, since it is larger than the sum of its proper divisors (2342796842).

3681537838 is a wasteful number, since it uses less digits than its factorization.

3681537838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167342642.

The product of its digits is 2903040, while the sum is 52.

The square root of 3681537838 is about 60675.6774828267. The cubic root of 3681537838 is about 1544.1035548392.

The spelling of 3681537838 in words is "three billion, six hundred eighty-one million, five hundred thirty-seven thousand, eight hundred thirty-eight".