49642368185 has 8 divisors (see below), whose sum is σ = 63075009096. Its totient is φ = 37377783040.

The previous prime is 49642368179. The next prime is 49642368187. The reversal of 49642368185 is 58186324694.

It can be written as a sum of positive squares in 4 ways, for example, as 19113892009 + 30528476176 = 138253^2 + 174724^2 .

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

It is not a de Polignac number, because 49642368185 - 2⁴ = 49642368169 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 49642368185.

It is not an unprimeable number, because it can be changed into a prime (49642368187) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 292013846 + ... + 292014015.

It is an arithmetic number, because the mean of its divisors is an integer number (7884376137).

Almost surely, 2^49642368185 is an apocalyptic number.

It is an amenable number.

49642368185 is a deficient number, since it is larger than the sum of its proper divisors (13432640911).

49642368185 is a wasteful number, since it uses less digits than its factorization.

49642368185 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 584027883.

The product of its digits is 9953280, while the sum is 56.

The spelling of 49642368185 in words is "forty-nine billion, six hundred forty-two million, three hundred sixty-eight thousand, one hundred eighty-five".