3651399841 has 12 divisors (see below), whose sum is σ = 3856280832. Its totient is φ = 3456899064.

The previous prime is 3651399833. The next prime is 3651399919. The reversal of 3651399841 is 1489931563.

3651399841 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3651399841 - 2³ = 3651399833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3651399641) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 794436 + ... + 799018.

It is an arithmetic number, because the mean of its divisors is an integer number (321356736).

Almost surely, 2^3651399841 is an apocalyptic number.

It is an amenable number.

3651399841 is a deficient number, since it is larger than the sum of its proper divisors (204880991).

3651399841 is a wasteful number, since it uses less digits than its factorization.

3651399841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6828 (or 6809 counting only the distinct ones).

The product of its digits is 699840, while the sum is 49.

The square root of 3651399841 is about 60426.8139239527. The cubic root of 3651399841 is about 1539.8785310669.

The spelling of 3651399841 in words is "three billion, six hundred fifty-one million, three hundred ninety-nine thousand, eight hundred forty-one".