2919428856 has 48 divisors (see below), whose sum is σ = 7913419800. Its totient is φ = 972326592.

The previous prime is 2919428843. The next prime is 2919428861. The reversal of 2919428856 is 6588249192.

It is a happy number.

2919428856 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 72675 + ... + 105453.

Almost surely, 2^2919428856 is an apocalyptic number.

It is an amenable number.

2919428856 is an abundant number, since it is smaller than the sum of its proper divisors (4993990944).

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

2919428856 is a wasteful number, since it uses less digits than its factorization.

2919428856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34028 (or 34021 counting only the distinct ones).

The product of its digits is 2488320, while the sum is 54.

The square root of 2919428856 is about 54031.7393390218. The cubic root of 2919428856 is about 1429.2207037255.

The spelling of 2919428856 in words is "two billion, nine hundred nineteen million, four hundred twenty-eight thousand, eight hundred fifty-six".