849689542903 has 2 divisors, whose sum is σ = 849689542904. Its totient is φ = 849689542902.

The previous prime is 849689542853. The next prime is 849689542937. The reversal of 849689542903 is 309245986948.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 849689542903 - 2³³ = 841099608311 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (849689542963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 424844771451 + 424844771452.

It is an arithmetic number, because the mean of its divisors is an integer number (424844771452).

Almost surely, 2^849689542903 is an apocalyptic number.

849689542903 is a deficient number, since it is larger than the sum of its proper divisors (1).

849689542903 is an equidigital number, since it uses as much as digits as its factorization.

849689542903 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 134369280, while the sum is 67.

The spelling of 849689542903 in words is "eight hundred forty-nine billion, six hundred eighty-nine million, five hundred forty-two thousand, nine hundred three".