40602624637 has 2 divisors, whose sum is σ = 40602624638. Its totient is φ = 40602624636.

The previous prime is 40602624631. The next prime is 40602624659. The reversal of 40602624637 is 73642620604.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34409879001 + 6192745636 = 185499^2 + 78694^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40602624637 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40602624637.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40602624631) 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 as a sum of consecutive naturals, namely, 20301312318 + 20301312319.

It is an arithmetic number, because the mean of its divisors is an integer number (20301312319).

Almost surely, 2^40602624637 is an apocalyptic number.

It is an amenable number.

40602624637 is a deficient number, since it is larger than the sum of its proper divisors (1).

40602624637 is an equidigital number, since it uses as much as digits as its factorization.

40602624637 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 290304, while the sum is 40.

The spelling of 40602624637 in words is "forty billion, six hundred two million, six hundred twenty-four thousand, six hundred thirty-seven".