2547868420 has 24 divisors (see below), whose sum is σ = 5403503448. Its totient is φ = 1009056000.

The previous prime is 2547868409. The next prime is 2547868423. The reversal of 2547868420 is 248687452.

2547868420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 833245956 + 1714622464 = 28866^2 + 41408^2 .

It is not an unprimeable number, because it can be changed into a prime (2547868423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 628641 + ... + 632680.

It is an arithmetic number, because the mean of its divisors is an integer number (225145977).

Almost surely, 2^2547868420 is an apocalyptic number.

2547868420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2547868420 is an abundant number, since it is smaller than the sum of its proper divisors (2855635028).

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

2547868420 is a wasteful number, since it uses less digits than its factorization.

2547868420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1261431 (or 1261429 counting only the distinct ones).

The product of its (nonzero) digits is 860160, while the sum is 46.

The square root of 2547868420 is about 50476.4144923151. The cubic root of 2547868420 is about 1365.8164275950.

The spelling of 2547868420 in words is "two billion, five hundred forty-seven million, eight hundred sixty-eight thousand, four hundred twenty".