8491668480 has 704 divisors, whose sum is σ = 32896108800. Its totient is φ = 2070282240.

The previous prime is 8491668469. The next prime is 8491668527. The reversal of 8491668480 is 848661948.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 139207650 + ... + 139207710.

Almost surely, 2^8491668480 is an apocalyptic number.

8491668480 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8491668480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16448054400).

8491668480 is an abundant number, since it is smaller than the sum of its proper divisors (24404440320).

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

8491668480 is a wasteful number, since it uses less digits than its factorization.

8491668480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167 (or 143 counting only the distinct ones).

The product of its (nonzero) digits is 2654208, while the sum is 54.

The square root of 8491668480 is about 92150.2494841984. The cubic root of 8491668480 is about 2040.1605409989.

The spelling of 8491668480 in words is "eight billion, four hundred ninety-one million, six hundred sixty-eight thousand, four hundred eighty".