4681551864 has 32 divisors (see below), whose sum is σ = 12767869440. Its totient is φ = 1418652000.

The previous prime is 4681551863. The next prime is 4681551869.

4681551864 is nontrivially palindromic in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4681551863) 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, 8866312 + ... + 8866839.

It is an arithmetic number, because the mean of its divisors is an integer number (398995920).

Almost surely, 2^4681551864 is an apocalyptic number.

4681551864 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

4681551864 is an abundant number, since it is smaller than the sum of its proper divisors (8086317576).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4681551864 is a wasteful number, since it uses less digits than its factorization.

4681551864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17733171 (or 17733167 counting only the distinct ones).

The product of its digits is 921600, while the sum is 48.

The square root of 4681551864 is about 68421.8668555601. The cubic root of 4681551864 is about 1672.8741861090.

The spelling of 4681551864 in words is "four billion, six hundred eighty-one million, five hundred fifty-one thousand, eight hundred sixty-four".