2547864013 has 4 divisors (see below), whose sum is σ = 2549439360. Its totient is φ = 2546288668.

The previous prime is 2547863987. The next prime is 2547864019. The reversal of 2547864013 is 3104687452.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2547864013 is a prime.

It is a super-3 number, since 3×2547864013³ (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2547864019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 785245 + ... + 788482.

It is an arithmetic number, because the mean of its divisors is an integer number (637359840).

Almost surely, 2^2547864013 is an apocalyptic number.

It is an amenable number.

2547864013 is a deficient number, since it is larger than the sum of its proper divisors (1575347).

2547864013 is a wasteful number, since it uses less digits than its factorization.

2547864013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1575346.

The product of its (nonzero) digits is 161280, while the sum is 40.

The square root of 2547864013 is about 50476.3708382447. The cubic root of 2547864013 is about 1365.8156401189.

The spelling of 2547864013 in words is "two billion, five hundred forty-seven million, eight hundred sixty-four thousand, thirteen".