2547838847 has 4 divisors (see below), whose sum is σ = 2549880000. Its totient is φ = 2545797696.

The previous prime is 2547838837. The next prime is 2547838871. The reversal of 2547838847 is 7488387452.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2547838847 - 2¹⁶ = 2547773311 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2547838792 and 2547838801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2547838837) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1018703 + ... + 1021200.

It is an arithmetic number, because the mean of its divisors is an integer number (637470000).

Almost surely, 2^2547838847 is an apocalyptic number.

2547838847 is a deficient number, since it is larger than the sum of its proper divisors (2041153).

2547838847 is a wasteful number, since it uses less digits than its factorization.

2547838847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2041152.

The product of its digits is 12042240, while the sum is 56.

The square root of 2547838847 is about 50476.1215526708. The cubic root of 2547838847 is about 1365.8111432502.

The spelling of 2547838847 in words is "two billion, five hundred forty-seven million, eight hundred thirty-eight thousand, eight hundred forty-seven".