40573716439 has 2 divisors, whose sum is σ = 40573716440. Its totient is φ = 40573716438.

The previous prime is 40573716437. The next prime is 40573716503. The reversal of 40573716439 is 93461737504.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40573716439 - 2¹ = 40573716437 is a prime.

Together with 40573716437, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 40573716392 and 40573716401.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40573716437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20286858219 + 20286858220.

It is an arithmetic number, because the mean of its divisors is an integer number (20286858220).

Almost surely, 2^40573716439 is an apocalyptic number.

40573716439 is a deficient number, since it is larger than the sum of its proper divisors (1).

40573716439 is an equidigital number, since it uses as much as digits as its factorization.

40573716439 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1905120, while the sum is 49.

The spelling of 40573716439 in words is "forty billion, five hundred seventy-three million, seven hundred sixteen thousand, four hundred thirty-nine".