2543201280 has 176 divisors, whose sum is σ = 9038569440. Its totient is φ = 678150144.

The previous prime is 2543201279. The next prime is 2543201299. The reversal of 2543201280 is 821023452.

2543201280 is a `hidden beast` number, since 254 + 320 + 12 + 80 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 129042 + ... + 147438.

Almost surely, 2^2543201280 is an apocalyptic number.

2543201280 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 2543201280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4519284720).

2543201280 is an abundant number, since it is smaller than the sum of its proper divisors (6495368160).

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

2543201280 is a wasteful number, since it uses less digits than its factorization.

2543201280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18431 (or 18407 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 2543201280 is about 50430.1624030699. The cubic root of 2543201280 is about 1364.9819584622.

The spelling of 2543201280 in words is "two billion, five hundred forty-three million, two hundred one thousand, two hundred eighty".