38231085818 has 8 divisors (see below), whose sum is σ = 57990973140. Its totient is φ = 18900761440.

The previous prime is 38231085799. The next prime is 38231085821. The reversal of 38231085818 is 81858013283.

It can be written as a sum of positive squares in 2 ways, for example, as 36972752089 + 1258333729 = 192283^2 + 35473^2 .

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

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, 107390513 + ... + 107390868.

Almost surely, 2^38231085818 is an apocalyptic number.

38231085818 is a deficient number, since it is larger than the sum of its proper divisors (19759887322).

38231085818 is a wasteful number, since it uses less digits than its factorization.

38231085818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214781472.

The product of its (nonzero) digits is 368640, while the sum is 47.

The spelling of 38231085818 in words is "thirty-eight billion, two hundred thirty-one million, eighty-five thousand, eight hundred eighteen".