2563678260 has 288 divisors, whose sum is σ = 9215361792. Its totient is φ = 568719360.

The previous prime is 2563678231. The next prime is 2563678297. The reversal of 2563678260 is 628763652.

It is a happy number.

2563678260 is a `hidden beast` number, since 2 + 5 + 636 + 7 + 8 + 2 + 6 + 0 = 666.

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 pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3526017 + ... + 3526743.

It is an arithmetic number, because the mean of its divisors is an integer number (31997784).

Almost surely, 2^2563678260 is an apocalyptic number.

2563678260 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 2563678260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4607680896).

2563678260 is an abundant number, since it is smaller than the sum of its proper divisors (6651683532).

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

2563678260 is a wasteful number, since it uses less digits than its factorization.

2563678260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 903 (or 898 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 45.

The square root of 2563678260 is about 50632.7785135282. The cubic root of 2563678260 is about 1368.6356246456.

The spelling of 2563678260 in words is "two billion, five hundred sixty-three million, six hundred seventy-eight thousand, two hundred sixty".