40830865831 has 4 divisors (see below), whose sum is σ = 46663846672. Its totient is φ = 34997884992.

The previous prime is 40830865787. The next prime is 40830865843. The reversal of 40830865831 is 13856803804.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 40830865831 - 2²⁷ = 40696648103 is a prime.

It is a super-2 number, since 2×40830865831² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40830865631) 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 3 ways as a sum of consecutive naturals, for example, 2916490410 + ... + 2916490423.

It is an arithmetic number, because the mean of its divisors is an integer number (11665961668).

Almost surely, 2^40830865831 is an apocalyptic number.

40830865831 is a deficient number, since it is larger than the sum of its proper divisors (5832980841).

40830865831 is an equidigital number, since it uses as much as digits as its factorization.

40830865831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5832980840.

The product of its (nonzero) digits is 552960, while the sum is 46.

The spelling of 40830865831 in words is "forty billion, eight hundred thirty million, eight hundred sixty-five thousand, eight hundred thirty-one".