40736185717639 has 2 divisors, whose sum is σ = 40736185717640. Its totient is φ = 40736185717638.

The previous prime is 40736185717637. The next prime is 40736185717771. The reversal of 40736185717639 is 93671758163704.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40736185717639 - 2¹ = 40736185717637 is a prime.

Together with 40736185717637, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40736185717637) 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, 20368092858819 + 20368092858820.

It is an arithmetic number, because the mean of its divisors is an integer number (20368092858820).

Almost surely, 2^{40736185717639} is an apocalyptic number.

40736185717639 is a deficient number, since it is larger than the sum of its proper divisors (1).

40736185717639 is an equidigital number, since it uses as much as digits as its factorization.

40736185717639 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 160030080, while the sum is 67.

The spelling of 40736185717639 in words is "forty trillion, seven hundred thirty-six billion, one hundred eighty-five million, seven hundred seventeen thousand, six hundred thirty-nine".