3278121984 has 264 divisors, whose sum is σ = 10118566640. Its totient is φ = 1019215872.

The previous prime is 3278121949. The next prime is 3278122021. The reversal of 3278121984 is 4891218723.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16984992 + ... + 16985184.

Almost surely, 2^3278121984 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3278121984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5059283320).

3278121984 is an abundant number, since it is smaller than the sum of its proper divisors (6840444656).

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

3278121984 is a wasteful number, since it uses less digits than its factorization.

3278121984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335 (or 314 counting only the distinct ones).

The product of its digits is 193536, while the sum is 45.

The square root of 3278121984 is about 57254.8861146365. The cubic root of 3278121984 is about 1485.5081429403.

The spelling of 3278121984 in words is "three billion, two hundred seventy-eight million, one hundred twenty-one thousand, nine hundred eighty-four".