3648120064 has 18 divisors (see below), whose sum is σ = 7281990170. Its totient is φ = 1824059904.

The previous prime is 3648120059. The next prime is 3648120071. The reversal of 3648120064 is 4600218463.

It can be written as a sum of positive squares in only one way, i.e., 3068273664 + 579846400 = 55392^2 + 24080^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7124979 + ... + 7125490.

Almost surely, 2^3648120064 is an apocalyptic number.

It is an amenable number.

3648120064 is a deficient number, since it is larger than the sum of its proper divisors (3633870106).

3648120064 is an equidigital number, since it uses as much as digits as its factorization.

3648120064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14250485 (or 14250471 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 34.

The square root of 3648120064 is about 60399.6694030688. The cubic root of 3648120064 is about 1539.4173407187.

The spelling of 3648120064 in words is "three billion, six hundred forty-eight million, one hundred twenty thousand, sixty-four".