2591668480 has 72 divisors (see below), whose sum is σ = 6352359552. Its totient is φ = 1012537344.

The previous prime is 2591668463. The next prime is 2591668481. The reversal of 2591668480 is 848661952.

It is not an unprimeable number, because it can be changed into a prime (2591668481) 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, 31497 + ... + 78583.

It is an arithmetic number, because the mean of its divisors is an integer number (88227216).

Almost surely, 2^2591668480 is an apocalyptic number.

2591668480 is a gapful number since it is divisible by the number (20) 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 2591668480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3176179776).

2591668480 is an abundant number, since it is smaller than the sum of its proper divisors (3760691072).

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

2591668480 is an equidigital number, since it uses as much as digits as its factorization.

2591668480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47151 (or 47137 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 49.

The square root of 2591668480 is about 50908.4323074282. The cubic root of 2591668480 is about 1373.5985244211.

The spelling of 2591668480 in words is "two billion, five hundred ninety-one million, six hundred sixty-eight thousand, four hundred eighty".