40631763539 has 2 divisors, whose sum is σ = 40631763540. Its totient is φ = 40631763538.

The previous prime is 40631763509. The next prime is 40631763553. The reversal of 40631763539 is 93536713604.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40631763539 - 2²⁴ = 40614986323 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40631763493 and 40631763502.

It is not a weakly prime, because it can be changed into another prime (40631763509) 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, 20315881769 + 20315881770.

It is an arithmetic number, because the mean of its divisors is an integer number (20315881770).

Almost surely, 2^40631763539 is an apocalyptic number.

40631763539 is a deficient number, since it is larger than the sum of its proper divisors (1).

40631763539 is an equidigital number, since it uses as much as digits as its factorization.

40631763539 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1224720, while the sum is 47.

The spelling of 40631763539 in words is "forty billion, six hundred thirty-one million, seven hundred sixty-three thousand, five hundred thirty-nine".