40402727423 has 2 divisors, whose sum is σ = 40402727424. Its totient is φ = 40402727422.

The previous prime is 40402727401. The next prime is 40402727447. The reversal of 40402727423 is 32472720404.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40402727423 - 2²⁴ = 40385950207 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40402727473) 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, 20201363711 + 20201363712.

It is an arithmetic number, because the mean of its divisors is an integer number (20201363712).

Almost surely, 2^40402727423 is an apocalyptic number.

40402727423 is a deficient number, since it is larger than the sum of its proper divisors (1).

40402727423 is an equidigital number, since it uses as much as digits as its factorization.

40402727423 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 75264, while the sum is 35.

The spelling of 40402727423 in words is "forty billion, four hundred two million, seven hundred twenty-seven thousand, four hundred twenty-three".