2548978464 has 24 divisors (see below), whose sum is σ = 6691068720. Its totient is φ = 849659456.

The previous prime is 2548978451. The next prime is 2548978489. The reversal of 2548978464 is 4648798452.

2548978464 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (24).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13275834 + ... + 13276025.

It is an arithmetic number, because the mean of its divisors is an integer number (278794530).

Almost surely, 2^2548978464 is an apocalyptic number.

2548978464 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2548978464 is an abundant number, since it is smaller than the sum of its proper divisors (4142090256).

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

2548978464 is a wasteful number, since it uses less digits than its factorization.

2548978464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26551872 (or 26551864 counting only the distinct ones).

The product of its digits is 15482880, while the sum is 57.

The square root of 2548978464 is about 50487.4089650083. The cubic root of 2548978464 is about 1366.0147497419.

The spelling of 2548978464 in words is "two billion, five hundred forty-eight million, nine hundred seventy-eight thousand, four hundred sixty-four".