2557134847 has 2 divisors, whose sum is σ = 2557134848. Its totient is φ = 2557134846.

The previous prime is 2557134841. The next prime is 2557134869. The reversal of 2557134847 is 7484317552.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2557134847 - 2⁷ = 2557134719 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2557134797 and 2557134806.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2557134841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1278567423 + 1278567424.

It is an arithmetic number, because the mean of its divisors is an integer number (1278567424).

Almost surely, 2^2557134847 is an apocalyptic number.

2557134847 is a deficient number, since it is larger than the sum of its proper divisors (1).

2557134847 is an equidigital number, since it uses as much as digits as its factorization.

2557134847 is an evil number, because the sum of its binary digits is even.

The product of its digits is 940800, while the sum is 46.

The square root of 2557134847 is about 50568.1208569193. The cubic root of 2557134847 is about 1367.4702186296.

The spelling of 2557134847 in words is "two billion, five hundred fifty-seven million, one hundred thirty-four thousand, eight hundred forty-seven".