2649573651 has 8 divisors (see below), whose sum is σ = 3540142080. Its totient is φ = 1762693832.

The previous prime is 2649573611. The next prime is 2649573677. The reversal of 2649573651 is 1563759462.

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 2649573651 - 2³⁰ = 1575831827 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2649573651.

It is not an unprimeable number, because it can be changed into a prime (2649573601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 920475 + ... + 923348.

It is an arithmetic number, because the mean of its divisors is an integer number (442517760).

Almost surely, 2^2649573651 is an apocalyptic number.

2649573651 is a deficient number, since it is larger than the sum of its proper divisors (890568429).

2649573651 is a wasteful number, since it uses less digits than its factorization.

2649573651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1844305.

The product of its digits is 1360800, while the sum is 48.

The square root of 2649573651 is about 51474.0094707999. The cubic root of 2649573651 is about 1383.7532866488.

The spelling of 2649573651 in words is "two billion, six hundred forty-nine million, five hundred seventy-three thousand, six hundred fifty-one".