38145831761 has 8 divisors (see below), whose sum is σ = 39463701120. Its totient is φ = 36828128848.

The previous prime is 38145831751. The next prime is 38145831809. The reversal of 38145831761 is 16713854183.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38145831761 is a prime.

It is a super-2 number, since 2×38145831761² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (38145831721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 584600 + ... + 646566.

It is an arithmetic number, because the mean of its divisors is an integer number (4932962640).

Almost surely, 2^38145831761 is an apocalyptic number.

It is an amenable number.

38145831761 is a deficient number, since it is larger than the sum of its proper divisors (1317869359).

38145831761 is a wasteful number, since it uses less digits than its factorization.

38145831761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83223.

The product of its digits is 483840, while the sum is 47.

The spelling of 38145831761 in words is "thirty-eight billion, one hundred forty-five million, eight hundred thirty-one thousand, seven hundred sixty-one".