2481840891 has 12 divisors (see below), whose sum is σ = 3717655032. Its totient is φ = 1654560432.

The previous prime is 2481840877. The next prime is 2481840901. The reversal of 2481840891 is 1980481842.

2481840891 is a `hidden beast` number, since 2 + 481 + 84 + 0 + 8 + 91 = 666.

It is not a de Polignac number, because 2481840891 - 2⁷ = 2481840763 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2481840091) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5106426 + ... + 5106911.

It is an arithmetic number, because the mean of its divisors is an integer number (309804586).

Almost surely, 2^2481840891 is an apocalyptic number.

2481840891 is a deficient number, since it is larger than the sum of its proper divisors (1235814141).

2481840891 is an equidigital number, since it uses as much as digits as its factorization.

2481840891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10213352 (or 10213340 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 45.

The square root of 2481840891 is about 49818.0779536907. The cubic root of 2481840891 is about 1353.9147260053.

The spelling of 2481840891 in words is "two billion, four hundred eighty-one million, eight hundred forty thousand, eight hundred ninety-one".