445987739839 has 2 divisors, whose sum is σ = 445987739840. Its totient is φ = 445987739838.

The previous prime is 445987739833. The next prime is 445987739867. The reversal of 445987739839 is 938937789544.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 445987739839 - 2³⁵ = 411628001471 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (445987739833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222993869919 + 222993869920.

It is an arithmetic number, because the mean of its divisors is an integer number (222993869920).

Almost surely, 2^445987739839 is an apocalyptic number.

445987739839 is a deficient number, since it is larger than the sum of its proper divisors (1).

445987739839 is an equidigital number, since it uses as much as digits as its factorization.

445987739839 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1646023680, while the sum is 76.

The spelling of 445987739839 in words is "four hundred forty-five billion, nine hundred eighty-seven million, seven hundred thirty-nine thousand, eight hundred thirty-nine".