468637891 has 2 divisors, whose sum is σ = 468637892. Its totient is φ = 468637890.

The previous prime is 468637889. The next prime is 468637909. The reversal of 468637891 is 198736864.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 468637891 - 2¹ = 468637889 is a prime.

Together with 468637889, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (468637801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 234318945 + 234318946.

It is an arithmetic number, because the mean of its divisors is an integer number (234318946).

Almost surely, 2^468637891 is an apocalyptic number.

468637891 is a deficient number, since it is larger than the sum of its proper divisors (1).

468637891 is an equidigital number, since it uses as much as digits as its factorization.

468637891 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1741824, while the sum is 52.

The square root of 468637891 is about 21648.0458933364. The cubic root of 468637891 is about 776.7461928878.

The spelling of 468637891 in words is "four hundred sixty-eight million, six hundred thirty-seven thousand, eight hundred ninety-one".