3278751966 has 64 divisors (see below), whose sum is σ = 8552079360. Its totient is φ = 911463840.

The previous prime is 3278751947. The next prime is 3278751997. The reversal of 3278751966 is 6691578723.

It is a super-3 number, since 3×3278751966³ (a number of 30 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 103230 + ... + 131201.

It is an arithmetic number, because the mean of its divisors is an integer number (133626240).

Almost surely, 2^3278751966 is an apocalyptic number.

3278751966 is an abundant number, since it is smaller than the sum of its proper divisors (5273327394).

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

3278751966 is a wasteful number, since it uses less digits than its factorization.

3278751966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234486 (or 234480 counting only the distinct ones).

The product of its digits is 3810240, while the sum is 54.

The square root of 3278751966 is about 57260.3874070024. The cubic root of 3278751966 is about 1485.6032973664.

The spelling of 3278751966 in words is "three billion, two hundred seventy-eight million, seven hundred fifty-one thousand, nine hundred sixty-six".