49020609817 has 2 divisors, whose sum is σ = 49020609818. Its totient is φ = 49020609816.

The previous prime is 49020609791. The next prime is 49020609823. The reversal of 49020609817 is 71890602094.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47991226761 + 1029383056 = 219069^2 + 32084^2 .

It is a cyclic number.

It is not a de Polignac number, because 49020609817 - 2⁷ = 49020609689 is a prime.

It is not a weakly prime, because it can be changed into another prime (49020609017) 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, 24510304908 + 24510304909.

It is an arithmetic number, because the mean of its divisors is an integer number (24510304909).

Almost surely, 2^49020609817 is an apocalyptic number.

It is an amenable number.

49020609817 is a deficient number, since it is larger than the sum of its proper divisors (1).

49020609817 is an equidigital number, since it uses as much as digits as its factorization.

49020609817 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 217728, while the sum is 46.

The spelling of 49020609817 in words is "forty-nine billion, twenty million, six hundred nine thousand, eight hundred seventeen".