3681812448 has 48 divisors (see below), whose sum is σ = 10738622160. Its totient is φ = 1227270528.

The previous prime is 3681812437. The next prime is 3681812467. The reversal of 3681812448 is 8442181863.

It is a tau number, because it is divible by the number of its divisors (48).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2129815 + ... + 2131542.

It is an arithmetic number, because the mean of its divisors is an integer number (223721295).

Almost surely, 2^3681812448 is an apocalyptic number.

It is an amenable number.

3681812448 is an abundant number, since it is smaller than the sum of its proper divisors (7056809712).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3681812448 is a wasteful number, since it uses less digits than its factorization.

3681812448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4261376 (or 4261362 counting only the distinct ones).

The product of its digits is 294912, while the sum is 45.

The square root of 3681812448 is about 60677.9403737470. The cubic root of 3681812448 is about 1544.1419460182.

The spelling of 3681812448 in words is "three billion, six hundred eighty-one million, eight hundred twelve thousand, four hundred forty-eight".