49275609181 has 8 divisors (see below), whose sum is σ = 49732980440. Its totient is φ = 48818334528.

The previous prime is 49275609167. The next prime is 49275609191. The reversal of 49275609181 is 18190657294.

It can be written as a sum of positive squares in 4 ways, for example, as 23983477956 + 25292131225 = 154866^2 + 159035^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49275609181 is a prime.

It is a super-2 number, since 2×49275609181² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49275609191) 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 in 7 ways as a sum of consecutive naturals, for example, 1372795 + ... + 1408231.

It is an arithmetic number, because the mean of its divisors is an integer number (6216622555).

Almost surely, 2^49275609181 is an apocalyptic number.

It is an amenable number.

49275609181 is a deficient number, since it is larger than the sum of its proper divisors (457371259).

49275609181 is a wasteful number, since it uses less digits than its factorization.

49275609181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48303.

The product of its (nonzero) digits is 1088640, while the sum is 52.

The spelling of 49275609181 in words is "forty-nine billion, two hundred seventy-five million, six hundred nine thousand, one hundred eighty-one".