4280866646 has 16 divisors (see below), whose sum is σ = 7354354176. Its totient is φ = 1830725736.

The previous prime is 4280866633. The next prime is 4280866669. The reversal of 4280866646 is 6466680824.

It is a junction number, because it is equal to n+sod(n) for n = 4280866594 and 4280866603.

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, 320846 + ... + 333921.

It is an arithmetic number, because the mean of its divisors is an integer number (459647136).

Almost surely, 2^4280866646 is an apocalyptic number.

4280866646 is a deficient number, since it is larger than the sum of its proper divisors (3073487530).

4280866646 is a wasteful number, since it uses less digits than its factorization.

4280866646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 655243.

The product of its (nonzero) digits is 2654208, while the sum is 50.

The square root of 4280866646 is about 65428.3321352455. The cubic root of 4280866646 is about 1623.7178551944.

The spelling of 4280866646 in words is "four billion, two hundred eighty million, eight hundred sixty-six thousand, six hundred forty-six".