40804281719 has 2 divisors, whose sum is σ = 40804281720. Its totient is φ = 40804281718.

The previous prime is 40804281697. The next prime is 40804281733. The reversal of 40804281719 is 91718240804.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40804281719 - 2²⁰ = 40803233143 is a prime.

It is a super-2 number, since 2×40804281719² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 40804281719.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40804281779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20402140859 + 20402140860.

It is an arithmetic number, because the mean of its divisors is an integer number (20402140860).

Almost surely, 2^40804281719 is an apocalyptic number.

40804281719 is a deficient number, since it is larger than the sum of its proper divisors (1).

40804281719 is an equidigital number, since it uses as much as digits as its factorization.

40804281719 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 129024, while the sum is 44.

The spelling of 40804281719 in words is "forty billion, eight hundred four million, two hundred eighty-one thousand, seven hundred nineteen".