2019272864 has 96 divisors (see below), whose sum is σ = 4689861120. Its totient is φ = 837937152.

The previous prime is 2019272807. The next prime is 2019272881. The reversal of 2019272864 is 4682729102.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 936812 + ... + 938964.

It is an arithmetic number, because the mean of its divisors is an integer number (48852720).

Almost surely, 2^2019272864 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 2019272864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2344930560).

2019272864 is an abundant number, since it is smaller than the sum of its proper divisors (2670588256).

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

2019272864 is a wasteful number, since it uses less digits than its factorization.

2019272864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2302 (or 2294 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 41.

The square root of 2019272864 is about 44936.3200985572. The cubic root of 2019272864 is about 1263.9551671862.

The spelling of 2019272864 in words is "two billion, nineteen million, two hundred seventy-two thousand, eight hundred sixty-four".