3668637803840 has 56 divisors (see below), whose sum is σ = 8884010659680. Its totient is φ = 1442582993408.

The previous prime is 3668637803837. The next prime is 3668637803861. The reversal of 3668637803840 is 483087368663.

It is a happy number.

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, 97137842 + ... + 97175601.

Almost surely, 2^{3668637803840} is an apocalyptic number.

It is an amenable number.

3668637803840 is an abundant number, since it is smaller than the sum of its proper divisors (5215372855840).

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

3668637803840 is a wasteful number, since it uses less digits than its factorization.

3668637803840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194313519 (or 194313509 counting only the distinct ones).

The product of its (nonzero) digits is 83607552, while the sum is 62.

The spelling of 3668637803840 in words is "three trillion, six hundred sixty-eight billion, six hundred thirty-seven million, eight hundred three thousand, eight hundred forty".