468509861 has 4 divisors (see below), whose sum is σ = 468628800. Its totient is φ = 468390924.

The previous prime is 468509857. The next prime is 468509863. The reversal of 468509861 is 168905864.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 468509861 - 2² = 468509857 is a prime.

It is a super-3 number, since 3×468509861³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (468509863) 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 3 ways as a sum of consecutive naturals, for example, 53351 + ... + 61508.

It is an arithmetic number, because the mean of its divisors is an integer number (117157200).

Almost surely, 2^468509861 is an apocalyptic number.

It is an amenable number.

468509861 is a deficient number, since it is larger than the sum of its proper divisors (118939).

468509861 is a wasteful number, since it uses less digits than its factorization.

468509861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118938.

The product of its (nonzero) digits is 414720, while the sum is 47.

The square root of 468509861 is about 21645.0886115072. The cubic root of 468509861 is about 776.6754517929.

The spelling of 468509861 in words is "four hundred sixty-eight million, five hundred nine thousand, eight hundred sixty-one".