3668637803864 has 64 divisors (see below), whose sum is σ = 7610350567680. Its totient is φ = 1643940144000.

The previous prime is 3668637803863. The next prime is 3668637803867. The reversal of 3668637803864 is 4683087368663.

It is a junction number, because it is equal to n+sod(n) for n = 3668637803794 and 3668637803803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3668637803861) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 150508382 + ... + 150532754.

It is an arithmetic number, because the mean of its divisors is an integer number (118911727620).

Almost surely, 2^{3668637803864} is an apocalyptic number.

It is an amenable number.

3668637803864 is an abundant number, since it is smaller than the sum of its proper divisors (3941712763816).

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

3668637803864 is a wasteful number, since it uses less digits than its factorization.

3668637803864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48552 (or 48548 counting only the distinct ones).

The product of its (nonzero) digits is 501645312, while the sum is 68.

The spelling of 3668637803864 in words is "three trillion, six hundred sixty-eight billion, six hundred thirty-seven million, eight hundred three thousand, eight hundred sixty-four".