468656991 has 24 divisors (see below), whose sum is σ = 745042896. Its totient is φ = 281514240.

The previous prime is 468656959. The next prime is 468656999. The reversal of 468656991 is 199656864.

It is a happy number.

It is not a de Polignac number, because 468656991 - 2⁵ = 468656959 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (468656999) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9760 + ... + 32133.

It is an arithmetic number, because the mean of its divisors is an integer number (31043454).

Almost surely, 2^468656991 is an apocalyptic number.

468656991 is a deficient number, since it is larger than the sum of its proper divisors (276385905).

468656991 is a wasteful number, since it uses less digits than its factorization.

468656991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42023 (or 42020 counting only the distinct ones).

The product of its digits is 2799360, while the sum is 54.

The square root of 468656991 is about 21648.4870372042. The cubic root of 468656991 is about 776.7567452076.

The spelling of 468656991 in words is "four hundred sixty-eight million, six hundred fifty-six thousand, nine hundred ninety-one".