38832782081 has 4 divisors (see below), whose sum is σ = 39129215664. Its totient is φ = 38536348500.

The previous prime is 38832782047. The next prime is 38832782089. The reversal of 38832782081 is 18028723883.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 38832782081 - 2²⁶ = 38765673217 is a prime.

It is a super-2 number, since 2×38832782081² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38832782089) 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, 148216595 + ... + 148216856.

It is an arithmetic number, because the mean of its divisors is an integer number (9782303916).

Almost surely, 2^38832782081 is an apocalyptic number.

It is an amenable number.

38832782081 is a deficient number, since it is larger than the sum of its proper divisors (296433583).

38832782081 is a wasteful number, since it uses less digits than its factorization.

38832782081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 296433582.

The product of its (nonzero) digits is 1032192, while the sum is 50.

The spelling of 38832782081 in words is "thirty-eight billion, eight hundred thirty-two million, seven hundred eighty-two thousand, eighty-one".