2969986864 has 80 divisors (see below), whose sum is σ = 6468898464. Its totient is φ = 1311897600.

The previous prime is 2969986861. The next prime is 2969986913. The reversal of 2969986864 is 4686899692.

It is a self number, because there is not a number n which added to its sum of digits gives 2969986864.

It is not an unprimeable number, because it can be changed into a prime (2969986861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 448699 + ... + 455269.

Almost surely, 2^2969986864 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 2969986864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3234449232).

2969986864 is an abundant number, since it is smaller than the sum of its proper divisors (3498911600).

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

2969986864 is a wasteful number, since it uses less digits than its factorization.

2969986864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6686 (or 6680 counting only the distinct ones).

The product of its digits is 80621568, while the sum is 67.

The square root of 2969986864 is about 54497.5858547881. The cubic root of 2969986864 is about 1437.4238379207.

The spelling of 2969986864 in words is "two billion, nine hundred sixty-nine million, nine hundred eighty-six thousand, eight hundred sixty-four".