49774948609 has 3 divisors (see below), whose sum is σ = 49775171713. Its totient is φ = 49774725506.

The previous prime is 49774948607. The next prime is 49774948661. The reversal of 49774948609 is 90684947794.

The square root of 49774948609 is 223103.

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

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 49774948609 - 2¹ = 49774948607 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49774948607) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 111552 + ... + 334654.

Almost surely, 2^49774948609 is an apocalyptic number.

49774948609 is the 223103-rd square number.

49774948609 is the 111552-nd centered octagonal number.

It is an amenable number.

49774948609 is a deficient number, since it is larger than the sum of its proper divisors (223104).

49774948609 is an frugal number, since it uses more digits than its factorization.

49774948609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 446206 (or 223103 counting only the distinct ones).

The product of its (nonzero) digits is 109734912, while the sum is 67.

The spelling of 49774948609 in words is "forty-nine billion, seven hundred seventy-four million, nine hundred forty-eight thousand, six hundred nine".