40007343107631 has 4 divisors (see below), whose sum is σ = 53343124143512. Its totient is φ = 26671562071752.

The previous prime is 40007343107623. The next prime is 40007343107639. The reversal of 40007343107631 is 13670134370004.

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

It is an interprime number because it is at equal distance from previous prime (40007343107623) and next prime (40007343107639).

It is not a de Polignac number, because 40007343107631 - 2³ = 40007343107623 is a prime.

It is a super-2 number, since 2×40007343107631² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40007343107631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40007343107639) 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, 6667890517936 + ... + 6667890517941.

It is an arithmetic number, because the mean of its divisors is an integer number (13335781035878).

Almost surely, 2^{40007343107631} is an apocalyptic number.

40007343107631 is a deficient number, since it is larger than the sum of its proper divisors (13335781035881).

40007343107631 is a wasteful number, since it uses less digits than its factorization.

40007343107631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13335781035880.

The product of its (nonzero) digits is 127008, while the sum is 39.

Adding to 40007343107631 its reverse (13670134370004), we get a palindrome (53677477477635).

The spelling of 40007343107631 in words is "forty trillion, seven billion, three hundred forty-three million, one hundred seven thousand, six hundred thirty-one".