48939615729 has 27 divisors (see below), whose sum is σ = 72689220513. Its totient is φ = 31728687552.

The previous prime is 48939615727. The next prime is 48939615839. The reversal of 48939615729 is 92751693984.

The square root of 48939615729 is 221223.

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

48939615729 is a `hidden beast` number, since 4 + 8 + 9 + 3 + 9 + 615 + 7 + 2 + 9 = 666.

48939615729 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 20127948129 + 28811667600 = 141873^2 + 169740^2 .

It is not a de Polignac number, because 48939615729 - 2¹ = 48939615727 is a prime.

It is not an unprimeable number, because it can be changed into a prime (48939615721) 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, 24554757 + ... + 24556749.

Almost surely, 2^48939615729 is an apocalyptic number.

48939615729 is the 221223-rd square number.

48939615729 is the 110612-nd centered octagonal number.

It is an amenable number.

48939615729 is a deficient number, since it is larger than the sum of its proper divisors (23749604784).

48939615729 is an frugal number, since it uses more digits than its factorization.

48939615729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4066 (or 2033 counting only the distinct ones).

The product of its digits is 29393280, while the sum is 63.

The spelling of 48939615729 in words is "forty-eight billion, nine hundred thirty-nine million, six hundred fifteen thousand, seven hundred twenty-nine".