468615891 has 8 divisors (see below), whose sum is σ = 627503760. Its totient is φ = 311069312.

The previous prime is 468615853. The next prime is 468615893. The reversal of 468615891 is 198516864.

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

It is a cyclic number.

It is not a de Polignac number, because 468615891 - 2²³ = 460227283 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 468615891.

It is not an unprimeable number, because it can be changed into a prime (468615893) 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, 334506 + ... + 335903.

It is an arithmetic number, because the mean of its divisors is an integer number (78437970).

Almost surely, 2^468615891 is an apocalyptic number.

468615891 is a deficient number, since it is larger than the sum of its proper divisors (158887869).

468615891 is a wasteful number, since it uses less digits than its factorization.

468615891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 670645.

The product of its digits is 414720, while the sum is 48.

The square root of 468615891 is about 21647.5377583687. The cubic root of 468615891 is about 776.7340380280.

The spelling of 468615891 in words is "four hundred sixty-eight million, six hundred fifteen thousand, eight hundred ninety-one".