49654545889 has 27 divisors (see below), whose sum is σ = 54859057227. Its totient is φ = 44923132800.

The previous prime is 49654545881. The next prime is 49654545929. The reversal of 49654545889 is 98854545694.

The square root of 49654545889 is 222833.

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

It can be written as a sum of positive squares in 13 ways, for example, as 49610880225 + 43665664 = 222735^2 + 6608^2 .

It is not a de Polignac number, because 49654545889 - 2³ = 49654545881 is a prime.

It is not an unprimeable number, because it can be changed into a prime (49654545881) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 176706429 + ... + 176706709.

Almost surely, 2^49654545889 is an apocalyptic number.

49654545889 is the 222833-rd square number.

49654545889 is the 111417-th centered octagonal number.

It is an amenable number.

49654545889 is a deficient number, since it is larger than the sum of its proper divisors (5204511338).

49654545889 is an frugal number, since it uses more digits than its factorization.

49654545889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 710 (or 355 counting only the distinct ones).

The product of its digits is 248832000, while the sum is 67.

The spelling of 49654545889 in words is "forty-nine billion, six hundred fifty-four million, five hundred forty-five thousand, eight hundred eighty-nine".