48681909 has 6 divisors (see below), whose sum is σ = 70318326. Its totient is φ = 32454600.

The previous prime is 48681901. The next prime is 48681929. The reversal of 48681909 is 90918684.

48681909 is a `hidden beast` number, since 486 + 81 + 90 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 37271025 + 11410884 = 6105^2 + 3378^2 .

It is not a de Polignac number, because 48681909 - 2³ = 48681901 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48681901) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2704542 + ... + 2704559.

It is an arithmetic number, because the mean of its divisors is an integer number (11719721).

Almost surely, 2^48681909 is an apocalyptic number.

It is an amenable number.

48681909 is a deficient number, since it is larger than the sum of its proper divisors (21636417).

48681909 is a wasteful number, since it uses less digits than its factorization.

48681909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5409107 (or 5409104 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 45.

The square root of 48681909 is about 6977.2422202472. The cubic root of 48681909 is about 365.1370199272.

The spelling of 48681909 in words is "forty-eight million, six hundred eighty-one thousand, nine hundred nine".