40347434073631 has 16 divisors (see below), whose sum is σ = 41311488951040. Its totient is φ = 39384555557760.

The previous prime is 40347434073601. The next prime is 40347434073643. The reversal of 40347434073631 is 13637043474304.

It is a cyclic number.

It is not a de Polignac number, because 40347434073631 - 2⁹ = 40347434073119 is a prime.

It is a super-2 number, since 2×40347434073631² (a number of 28 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 (40347434073601) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 613905790 + ... + 613971508.

It is an arithmetic number, because the mean of its divisors is an integer number (2581968059440).

Almost surely, 2^{40347434073631} is an apocalyptic number.

40347434073631 is a deficient number, since it is larger than the sum of its proper divisors (964054877409).

40347434073631 is a wasteful number, since it uses less digits than its factorization.

40347434073631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74446.

The product of its (nonzero) digits is 6096384, while the sum is 49.

The spelling of 40347434073631 in words is "forty trillion, three hundred forty-seven billion, four hundred thirty-four million, seventy-three thousand, six hundred thirty-one".