2168461827 has 48 divisors (see below), whose sum is σ = 3899566080. Its totient is φ = 1185229584.

The previous prime is 2168461783. The next prime is 2168461891. The reversal of 2168461827 is 7281648612.

2168461827 is a `hidden beast` number, since 2 + 1 + 6 + 8 + 4 + 618 + 27 = 666.

It is not a de Polignac number, because 2168461827 - 2⁷ = 2168461699 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2168461327) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5203 + ... + 66060.

It is an arithmetic number, because the mean of its divisors is an integer number (81240960).

Almost surely, 2^2168461827 is an apocalyptic number.

2168461827 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

2168461827 is a deficient number, since it is larger than the sum of its proper divisors (1731104253).

2168461827 is a wasteful number, since it uses less digits than its factorization.

2168461827 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71309 (or 71296 counting only the distinct ones).

The product of its digits is 258048, while the sum is 45.

The square root of 2168461827 is about 46566.7459352702. The cubic root of 2168461827 is about 1294.3466195095.

The spelling of 2168461827 in words is "two billion, one hundred sixty-eight million, four hundred sixty-one thousand, eight hundred twenty-seven".