49515722281889 has 2 divisors, whose sum is σ = 49515722281890. Its totient is φ = 49515722281888.

The previous prime is 49515722281873. The next prime is 49515722281931. The reversal of 49515722281889 is 98818222751594.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 49462849878289 + 52872403600 = 7032983^2 + 229940^2 .

It is a cyclic number.

It is not a de Polignac number, because 49515722281889 - 2⁴ = 49515722281873 is a prime.

It is not a weakly prime, because it can be changed into another prime (49515722281849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24757861140944 + 24757861140945.

It is an arithmetic number, because the mean of its divisors is an integer number (24757861140945).

Almost surely, 2^{49515722281889} is an apocalyptic number.

It is an amenable number.

49515722281889 is a deficient number, since it is larger than the sum of its proper divisors (1).

49515722281889 is an equidigital number, since it uses as much as digits as its factorization.

49515722281889 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 232243200, while the sum is 71.

The spelling of 49515722281889 in words is "forty-nine trillion, five hundred fifteen billion, seven hundred twenty-two million, two hundred eighty-one thousand, eight hundred eighty-nine".