49840000169 has 2 divisors, whose sum is σ = 49840000170. Its totient is φ = 49840000168.

The previous prime is 49840000129. The next prime is 49840000181. The reversal of 49840000169 is 96100004894.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 46543747600 + 3296252569 = 215740^2 + 57413^2 .

It is a cyclic number.

It is not a de Polignac number, because 49840000169 - 2²⁰ = 49838951593 is a prime.

It is a super-2 number, since 2×49840000169² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (49840000129) 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, 24920000084 + 24920000085.

It is an arithmetic number, because the mean of its divisors is an integer number (24920000085).

Almost surely, 2^49840000169 is an apocalyptic number.

It is an amenable number.

49840000169 is a deficient number, since it is larger than the sum of its proper divisors (1).

49840000169 is an equidigital number, since it uses as much as digits as its factorization.

49840000169 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 62208, while the sum is 41.

The spelling of 49840000169 in words is "forty-nine billion, eight hundred forty million, one hundred sixty-nine", and thus it is an aban number.