49170231889 has 2 divisors, whose sum is σ = 49170231890. Its totient is φ = 49170231888.

The previous prime is 49170231829. The next prime is 49170231937. The reversal of 49170231889 is 98813207194.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 44619380289 + 4550851600 = 211233^2 + 67460^2 .

It is a cyclic number.

It is not a de Polignac number, because 49170231889 - 2³³ = 40580297297 is a prime.

It is not a weakly prime, because it can be changed into another prime (49170231829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24585115944 + 24585115945.

It is an arithmetic number, because the mean of its divisors is an integer number (24585115945).

Almost surely, 2^49170231889 is an apocalyptic number.

It is an amenable number.

49170231889 is a deficient number, since it is larger than the sum of its proper divisors (1).

49170231889 is an equidigital number, since it uses as much as digits as its factorization.

49170231889 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 870912, while the sum is 52.

The spelling of 49170231889 in words is "forty-nine billion, one hundred seventy million, two hundred thirty-one thousand, eight hundred eighty-nine".