40019191759 has 2 divisors, whose sum is σ = 40019191760. Its totient is φ = 40019191758.

The previous prime is 40019191733. The next prime is 40019191781. The reversal of 40019191759 is 95719191004.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40019191759 - 2¹⁷ = 40019060687 is a prime.

It is a super-2 number, since 2×40019191759² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40019191789) 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, 20009595879 + 20009595880.

It is an arithmetic number, because the mean of its divisors is an integer number (20009595880).

Almost surely, 2^40019191759 is an apocalyptic number.

40019191759 is a deficient number, since it is larger than the sum of its proper divisors (1).

40019191759 is an equidigital number, since it uses as much as digits as its factorization.

40019191759 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 102060, while the sum is 46.

The spelling of 40019191759 in words is "forty billion, nineteen million, one hundred ninety-one thousand, seven hundred fifty-nine".