2547645347 has 16 divisors (see below), whose sum is σ = 3031318080. Its totient is φ = 2117102592.

The previous prime is 2547645341. The next prime is 2547645349. The reversal of 2547645347 is 7435467452.

It is a cyclic number.

It is not a de Polignac number, because 2547645347 - 2⁸ = 2547645091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2547645341) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 245522 + ... + 255687.

It is an arithmetic number, because the mean of its divisors is an integer number (189457380).

Almost surely, 2^2547645347 is an apocalyptic number.

2547645347 is a deficient number, since it is larger than the sum of its proper divisors (483672733).

2547645347 is a wasteful number, since it uses less digits than its factorization.

2547645347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 501262.

The product of its digits is 2822400, while the sum is 47.

The square root of 2547645347 is about 50474.2047683765. The cubic root of 2547645347 is about 1365.7765660833.

The spelling of 2547645347 in words is "two billion, five hundred forty-seven million, six hundred forty-five thousand, three hundred forty-seven".