3268643278 has 16 divisors (see below), whose sum is σ = 5200161120. Its totient is φ = 1535581696.

The previous prime is 3268643267. The next prime is 3268643291. The reversal of 3268643278 is 8723468623.

It is a happy number.

3268643278 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, 60898 + ... + 101221.

It is an arithmetic number, because the mean of its divisors is an integer number (325010070).

Almost surely, 2^3268643278 is an apocalyptic number.

3268643278 is a deficient number, since it is larger than the sum of its proper divisors (1931517842).

3268643278 is a wasteful number, since it uses less digits than its factorization.

3268643278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162731.

The product of its digits is 2322432, while the sum is 49.

The square root of 3268643278 is about 57172.0497970818. The cubic root of 3268643278 is about 1484.0749759902.

The spelling of 3268643278 in words is "three billion, two hundred sixty-eight million, six hundred forty-three thousand, two hundred seventy-eight".