49884178145 has 4 divisors (see below), whose sum is σ = 59861013780. Its totient is φ = 39907342512.

The previous prime is 49884178109. The next prime is 49884178163. The reversal of 49884178145 is 54187148894.

It is a happy number.

49884178145 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54187148894 = 2 ⋅27093574447.

It can be written as a sum of positive squares in 2 ways, for example, as 37961066896 + 11923111249 = 194836^2 + 109193^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49884178145 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4988417810 + ... + 4988417819.

It is an arithmetic number, because the mean of its divisors is an integer number (14965253445).

Almost surely, 2^49884178145 is an apocalyptic number.

It is an amenable number.

49884178145 is a deficient number, since it is larger than the sum of its proper divisors (9976835635).

49884178145 is an equidigital number, since it uses as much as digits as its factorization.

49884178145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9976835634.

The product of its digits is 10321920, while the sum is 59.

The spelling of 49884178145 in words is "forty-nine billion, eight hundred eighty-four million, one hundred seventy-eight thousand, one hundred forty-five".