463881781 has 8 divisors (see below), whose sum is σ = 509695200. Its totient is φ = 418675440.

The previous prime is 463881763. The next prime is 463881787. The reversal of 463881781 is 187188364.

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 463881781 - 2⁷ = 463881653 is a prime.

It is a super-2 number, since 2×463881781² = 430372613487463922, which contains 22 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 (463881787) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 150166 + ... + 153223.

It is an arithmetic number, because the mean of its divisors is an integer number (63711900).

Almost surely, 2^463881781 is an apocalyptic number.

It is an amenable number.

463881781 is a deficient number, since it is larger than the sum of its proper divisors (45813419).

463881781 is a wasteful number, since it uses less digits than its factorization.

463881781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303539.

The product of its digits is 258048, while the sum is 46.

The square root of 463881781 is about 21537.9149640814. The cubic root of 463881781 is about 774.1095738102.

The spelling of 463881781 in words is "four hundred sixty-three million, eight hundred eighty-one thousand, seven hundred eighty-one".