49187111329 has 4 divisors (see below), whose sum is σ = 49194592020. Its totient is φ = 49179630640.

The previous prime is 49187111299. The next prime is 49187111387. The reversal of 49187111329 is 92311178194.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 11496771729 + 37690339600 = 107223^2 + 194140^2 .

It is a cyclic number.

It is not a de Polignac number, because 49187111329 - 2¹¹ = 49187109281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49187111629) 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 in 3 ways as a sum of consecutive naturals, for example, 3730474 + ... + 3743635.

It is an arithmetic number, because the mean of its divisors is an integer number (12298648005).

Almost surely, 2^49187111329 is an apocalyptic number.

It is an amenable number.

49187111329 is a deficient number, since it is larger than the sum of its proper divisors (7480691).

49187111329 is an equidigital number, since it uses as much as digits as its factorization.

49187111329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7480690.

The product of its digits is 108864, while the sum is 46.

The spelling of 49187111329 in words is "forty-nine billion, one hundred eighty-seven million, one hundred eleven thousand, three hundred twenty-nine".