461451881 has 8 divisors (see below), whose sum is σ = 503604864. Its totient is φ = 419332720.

The previous prime is 461451839. The next prime is 461451883. The reversal of 461451881 is 188154164.

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 461451881 - 2⁶ = 461451817 is a prime.

It is a super-2 number, since 2×461451881² = 425875676956876322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (461451883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26315 + ... + 40191.

It is an arithmetic number, because the mean of its divisors is an integer number (62950608).

Almost surely, 2^461451881 is an apocalyptic number.

It is an amenable number.

461451881 is a deficient number, since it is larger than the sum of its proper divisors (42152983).

461451881 is a wasteful number, since it uses less digits than its factorization.

461451881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16911.

The product of its digits is 30720, while the sum is 38.

The square root of 461451881 is about 21481.4310743023. The cubic root of 461451881 is about 772.7555630246.

The spelling of 461451881 in words is "four hundred sixty-one million, four hundred fifty-one thousand, eight hundred eighty-one".