2597806080 has 448 divisors, whose sum is σ = 9672523200. Its totient is φ = 668860416.

The previous prime is 2597806061. The next prime is 2597806117. The reversal of 2597806080 is 806087952.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 89579506 + ... + 89579534.

Almost surely, 2^2597806080 is an apocalyptic number.

2597806080 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 2597806080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4836261600).

2597806080 is an abundant number, since it is smaller than the sum of its proper divisors (7074717120).

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

2597806080 is an frugal number, since it uses more digits than its factorization.

2597806080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81 (or 39 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 45.

The square root of 2597806080 is about 50968.6774401691. The cubic root of 2597806080 is about 1374.6819901478.

The spelling of 2597806080 in words is "two billion, five hundred ninety-seven million, eight hundred six thousand, eighty".