2649456543 has 8 divisors (see below), whose sum is σ = 3567585456. Its totient is φ = 1748816000.

The previous prime is 2649456541. The next prime is 2649456553. The reversal of 2649456543 is 3456549462.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2649456543 - 2¹ = 2649456541 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2649456492 and 2649456501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2649456541) 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, 4371738 + ... + 4372343.

It is an arithmetic number, because the mean of its divisors is an integer number (445948182).

Almost surely, 2^2649456543 is an apocalyptic number.

2649456543 is a deficient number, since it is larger than the sum of its proper divisors (918128913).

2649456543 is a wasteful number, since it uses less digits than its factorization.

2649456543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8744185.

The product of its digits is 3110400, while the sum is 48.

The square root of 2649456543 is about 51472.8719132710. The cubic root of 2649456543 is about 1383.7328995993.

The spelling of 2649456543 in words is "two billion, six hundred forty-nine million, four hundred fifty-six thousand, five hundred forty-three".