3868617664 has 56 divisors (see below), whose sum is σ = 8432231040. Its totient is φ = 1752816384.

The previous prime is 3868617653. The next prime is 3868617761. The reversal of 3868617664 is 4667168683.

3868617664 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 41194 + ... + 97129.

Almost surely, 2^3868617664 is an apocalyptic number.

It is an amenable number.

3868617664 is an abundant number, since it is smaller than the sum of its proper divisors (4563613376).

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

3868617664 is a wasteful number, since it uses less digits than its factorization.

3868617664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138377 (or 138367 counting only the distinct ones).

The product of its digits is 6967296, while the sum is 55.

The square root of 3868617664 is about 62198.2127074404. The cubic root of 3868617664 is about 1569.8275148251.

The spelling of 3868617664 in words is "three billion, eight hundred sixty-eight million, six hundred seventeen thousand, six hundred sixty-four".