2881993280 has 56 divisors (see below), whose sum is σ = 6956813112. Its totient is φ = 1136996352.

The previous prime is 2881993271. The next prime is 2881993363. The reversal of 2881993280 is 823991882.

2881993280 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 328914496 + 2553078784 = 18136^2 + 50528^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38327 + ... + 85046.

Almost surely, 2^2881993280 is an apocalyptic number.

2881993280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2881993280 is an abundant number, since it is smaller than the sum of its proper divisors (4074819832).

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

2881993280 is a wasteful number, since it uses less digits than its factorization.

2881993280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123463 (or 123453 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 50.

The square root of 2881993280 is about 53684.1995376666. The cubic root of 2881993280 is about 1423.0854814836.

The spelling of 2881993280 in words is "two billion, eight hundred eighty-one million, nine hundred ninety-three thousand, two hundred eighty".