2649547653 has 8 divisors (see below), whose sum is σ = 3540600000. Its totient is φ = 1762430208.

The previous prime is 2649547643. The next prime is 2649547661. The reversal of 2649547653 is 3567459462.

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

It is not a de Polignac number, because 2649547653 - 2¹⁶ = 2649482117 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2649547596 and 2649547605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2649547603) 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, 982153 + ... + 984846.

It is an arithmetic number, because the mean of its divisors is an integer number (442575000).

Almost surely, 2^2649547653 is an apocalyptic number.

It is an amenable number.

2649547653 is a deficient number, since it is larger than the sum of its proper divisors (891052347).

2649547653 is a wasteful number, since it uses less digits than its factorization.

2649547653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1967451.

The product of its digits is 5443200, while the sum is 51.

The square root of 2649547653 is about 51473.7569349664. The cubic root of 2649547653 is about 1383.7487607715.

The spelling of 2649547653 in words is "two billion, six hundred forty-nine million, five hundred forty-seven thousand, six hundred fifty-three".