2548797678 has 80 divisors (see below), whose sum is σ = 6556999680. Its totient is φ = 724890384.

The previous prime is 2548797661. The next prime is 2548797703. The reversal of 2548797678 is 8767978452.

2548797678 is a `hidden beast` number, since 2 + 5 + 487 + 97 + 67 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 247843 + ... + 257921.

It is an arithmetic number, because the mean of its divisors is an integer number (81962496).

Almost surely, 2^2548797678 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2548797678, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3278499840).

2548797678 is an abundant number, since it is smaller than the sum of its proper divisors (4008202002).

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

2548797678 is a wasteful number, since it uses less digits than its factorization.

2548797678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10323 (or 10314 counting only the distinct ones).

The product of its digits is 47416320, while the sum is 63.

The square root of 2548797678 is about 50485.6185264675. The cubic root of 2548797678 is about 1365.9824541662.

The spelling of 2548797678 in words is "two billion, five hundred forty-eight million, seven hundred ninety-seven thousand, six hundred seventy-eight".