468216561 has 8 divisors (see below), whose sum is σ = 624766624. Its totient is φ = 311905440.

The previous prime is 468216559. The next prime is 468216577. The reversal of 468216561 is 165612864.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 468216561 - 2¹ = 468216559 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (468216521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55111 + ... + 63036.

It is an arithmetic number, because the mean of its divisors is an integer number (78095828).

Almost surely, 2^468216561 is an apocalyptic number.

It is an amenable number.

468216561 is a deficient number, since it is larger than the sum of its proper divisors (156550063).

468216561 is a wasteful number, since it uses less digits than its factorization.

468216561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119471.

The product of its digits is 69120, while the sum is 39.

The square root of 468216561 is about 21638.3123417701. The cubic root of 468216561 is about 776.5133445947.

The spelling of 468216561 in words is "four hundred sixty-eight million, two hundred sixteen thousand, five hundred sixty-one".