40023727439 has 2 divisors, whose sum is σ = 40023727440. Its totient is φ = 40023727438.

The previous prime is 40023727423. The next prime is 40023727463. The reversal of 40023727439 is 93472732004.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40023727439 - 2⁴ = 40023727423 is a prime.

It is a super-2 number, since 2×40023727439² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40023727396 and 40023727405.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40023727409) 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, 20011863719 + 20011863720.

It is an arithmetic number, because the mean of its divisors is an integer number (20011863720).

Almost surely, 2^40023727439 is an apocalyptic number.

40023727439 is a deficient number, since it is larger than the sum of its proper divisors (1).

40023727439 is an equidigital number, since it uses as much as digits as its factorization.

40023727439 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 254016, while the sum is 41.

The spelling of 40023727439 in words is "forty billion, twenty-three million, seven hundred twenty-seven thousand, four hundred thirty-nine".