49085497189 has 2 divisors, whose sum is σ = 49085497190. Its totient is φ = 49085497188.

The previous prime is 49085497171. The next prime is 49085497259. The reversal of 49085497189 is 98179458094.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48910860964 + 174636225 = 221158^2 + 13215^2 .

It is a cyclic number.

It is not a de Polignac number, because 49085497189 - 2¹³ = 49085488997 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 49085497189.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49085497159) 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, 24542748594 + 24542748595.

It is an arithmetic number, because the mean of its divisors is an integer number (24542748595).

Almost surely, 2^49085497189 is an apocalyptic number.

It is an amenable number.

49085497189 is a deficient number, since it is larger than the sum of its proper divisors (1).

49085497189 is an equidigital number, since it uses as much as digits as its factorization.

49085497189 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 26127360, while the sum is 64.

The spelling of 49085497189 in words is "forty-nine billion, eighty-five million, four hundred ninety-seven thousand, one hundred eighty-nine".