899546340839 has 2 divisors, whose sum is σ = 899546340840. Its totient is φ = 899546340838.

The previous prime is 899546340811. The next prime is 899546340859. The reversal of 899546340839 is 938043645998.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-899546340839 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (899546340859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 449773170419 + 449773170420.

It is an arithmetic number, because the mean of its divisors is an integer number (449773170420).

Almost surely, 2^899546340839 is an apocalyptic number.

899546340839 is a deficient number, since it is larger than the sum of its proper divisors (1).

899546340839 is an equidigital number, since it uses as much as digits as its factorization.

899546340839 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 201553920, while the sum is 68.

The spelling of 899546340839 in words is "eight hundred ninety-nine billion, five hundred forty-six million, three hundred forty thousand, eight hundred thirty-nine".