3291874872 has 128 divisors (see below), whose sum is σ = 9980651520. Its totient is φ = 891072000.

The previous prime is 3291874853. The next prime is 3291874879. The reversal of 3291874872 is 2784781923.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3291874879) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 90922 + ... + 121862.

It is an arithmetic number, because the mean of its divisors is an integer number (77973840).

Almost surely, 2^3291874872 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 3291874872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4990325760).

3291874872 is an abundant number, since it is smaller than the sum of its proper divisors (6688776648).

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

3291874872 is a wasteful number, since it uses less digits than its factorization.

3291874872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31005 (or 31001 counting only the distinct ones).

The product of its digits is 1354752, while the sum is 51.

The square root of 3291874872 is about 57374.8627187900. The cubic root of 3291874872 is about 1487.5826562548.

The spelling of 3291874872 in words is "three billion, two hundred ninety-one million, eight hundred seventy-four thousand, eight hundred seventy-two".