2546775280 has 120 divisors (see below), whose sum is σ = 7074984672. Its totient is φ = 835118592.

The previous prime is 2546775269. The next prime is 2546775289. The reversal of 2546775280 is 825776452.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a self number, because there is not a number n which added to its sum of digits gives 2546775280.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2546775289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 291942 + ... + 300538.

Almost surely, 2^2546775280 is an apocalyptic number.

2546775280 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 2546775280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3537492336).

2546775280 is an abundant number, since it is smaller than the sum of its proper divisors (4528209392).

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

2546775280 is a wasteful number, since it uses less digits than its factorization.

2546775280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8663 (or 8634 counting only the distinct ones).

The product of its (nonzero) digits is 940800, while the sum is 46.

The square root of 2546775280 is about 50465.5851050991. The cubic root of 2546775280 is about 1365.6210692408.

The spelling of 2546775280 in words is "two billion, five hundred forty-six million, seven hundred seventy-five thousand, two hundred eighty".