50156737849 has 9 divisors (see below), whose sum is σ = 50399102701. Its totient is φ = 49915536160.

The previous prime is 50156737843. The next prime is 50156737913. The reversal of 50156737849 is 94873765105.

The square root of 50156737849 is 223957.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 1345789225 + 48810948624 = 36685^2 + 220932^2 .

It is not a de Polignac number, because 50156737849 - 2¹⁷ = 50156606777 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 50156737849.

It is not an unprimeable number, because it can be changed into a prime (50156737843) 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 8 ways as a sum of consecutive naturals, for example, 62931519 + ... + 62932315.

Almost surely, 2^50156737849 is an apocalyptic number.

50156737849 is the 223957-th square number.

50156737849 is the 111979-th centered octagonal number.

It is an amenable number.

50156737849 is a deficient number, since it is larger than the sum of its proper divisors (242364852).

50156737849 is an frugal number, since it uses more digits than its factorization.

50156737849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2156 (or 1078 counting only the distinct ones).

The product of its (nonzero) digits is 6350400, while the sum is 55.

The spelling of 50156737849 in words is "fifty billion, one hundred fifty-six million, seven hundred thirty-seven thousand, eight hundred forty-nine".