40843291839 has 16 divisors (see below), whose sum is σ = 62462089728. Its totient is φ = 23254764192.

The previous prime is 40843291837. The next prime is 40843291849. The reversal of 40843291839 is 93819234804.

It is not a de Polignac number, because 40843291839 - 2¹ = 40843291837 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40843291791 and 40843291800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40843291837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3504867 + ... + 3516500.

It is an arithmetic number, because the mean of its divisors is an integer number (3903880608).

Almost surely, 2^40843291839 is an apocalyptic number.

40843291839 is a deficient number, since it is larger than the sum of its proper divisors (21618797889).

40843291839 is a wasteful number, since it uses less digits than its factorization.

40843291839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7021654.

The product of its (nonzero) digits is 1492992, while the sum is 51.

It can be divided in two parts, 4084 and 3291839, that added together give a palindrome (3295923).

The spelling of 40843291839 in words is "forty billion, eight hundred forty-three million, two hundred ninety-one thousand, eight hundred thirty-nine".