50549738409 has 12 divisors (see below), whose sum is σ = 74797174452. Its totient is φ = 32877878400.

The previous prime is 50549738339. The next prime is 50549738417. The reversal of 50549738409 is 90483794505.

50549738409 is a `hidden beast` number, since 50 + 549 + 7 + 3 + 8 + 40 + 9 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 21895712784 + 28654025625 = 147972^2 + 169275^2 .

It is not a de Polignac number, because 50549738409 - 2²⁹ = 50012867497 is a prime.

It is not an unprimeable number, because it can be changed into a prime (50549736409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 68495212 + ... + 68495949.

It is an arithmetic number, because the mean of its divisors is an integer number (6233097871).

Almost surely, 2^50549738409 is an apocalyptic number.

It is an amenable number.

50549738409 is a deficient number, since it is larger than the sum of its proper divisors (24247436043).

50549738409 is a wasteful number, since it uses less digits than its factorization.

50549738409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136991208 (or 136991205 counting only the distinct ones).

The product of its (nonzero) digits is 5443200, while the sum is 54.

The spelling of 50549738409 in words is "fifty billion, five hundred forty-nine million, seven hundred thirty-eight thousand, four hundred nine".