3784872648 has 16 divisors (see below), whose sum is σ = 9462181680. Its totient is φ = 1261624208.

The previous prime is 3784872643. The next prime is 3784872653. The reversal of 3784872648 is 8462784873.

It is an interprime number because it is at equal distance from previous prime (3784872643) and next prime (3784872653).

It is not an unprimeable number, because it can be changed into a prime (3784872643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78851490 + ... + 78851537.

It is an arithmetic number, because the mean of its divisors is an integer number (591386355).

Almost surely, 2^3784872648 is an apocalyptic number.

It is an amenable number.

3784872648 is an abundant number, since it is smaller than the sum of its proper divisors (5677309032).

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

3784872648 is a wasteful number, since it uses less digits than its factorization.

3784872648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157703036 (or 157703032 counting only the distinct ones).

The product of its digits is 14450688, while the sum is 57.

The square root of 3784872648 is about 61521.3186464660. The cubic root of 3784872648 is about 1558.4172869625.

The spelling of 3784872648 in words is "three billion, seven hundred eighty-four million, eight hundred seventy-two thousand, six hundred forty-eight".