433940457439 has 2 divisors, whose sum is σ = 433940457440. Its totient is φ = 433940457438.

The previous prime is 433940457409. The next prime is 433940457449. The reversal of 433940457439 is 934754049334.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-433940457439 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 433940457439.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (433940457409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 216970228719 + 216970228720.

It is an arithmetic number, because the mean of its divisors is an integer number (216970228720).

Almost surely, 2^433940457439 is an apocalyptic number.

433940457439 is a deficient number, since it is larger than the sum of its proper divisors (1).

433940457439 is an equidigital number, since it uses as much as digits as its factorization.

433940457439 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19595520, while the sum is 55.

The spelling of 433940457439 in words is "four hundred thirty-three billion, nine hundred forty million, four hundred fifty-seven thousand, four hundred thirty-nine".