38013690841 has 45 divisors (see below), whose sum is σ = 46628132159. Its totient is φ = 30986351088.

The previous prime is 38013690833. The next prime is 38013690853. The reversal of 38013690841 is 14809631083.

The square root of 38013690841 is 194971.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 34579262025 + 3434428816 = 185955^2 + 58604^2 .

It is not a de Polignac number, because 38013690841 - 2³ = 38013690833 is a prime.

It is not an unprimeable number, because it can be changed into a prime (38013690881) by changing a digit.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 219732231 + ... + 219732403.

Almost surely, 2^38013690841 is an apocalyptic number.

38013690841 is the 194971-st square number.

38013690841 is the 97486-th centered octagonal number.

It is an amenable number.

38013690841 is a deficient number, since it is larger than the sum of its proper divisors (8614441318).

38013690841 is an frugal number, since it uses more digits than its factorization.

38013690841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420 (or 203 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 43.

The spelling of 38013690841 in words is "thirty-eight billion, thirteen million, six hundred ninety thousand, eight hundred forty-one".