6453663545 has 32 divisors (see below), whose sum is σ = 9143746560. Its totient is φ = 4279101120.

The previous prime is 6453663529. The next prime is 6453663547. The reversal of 6453663545 is 5453663546.

It is not a de Polignac number, because 6453663545 - 2⁴ = 6453663529 is a prime.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 6453663545.

It is not an unprimeable number, because it can be changed into a prime (6453663547) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2536544 + ... + 2539086.

It is an arithmetic number, because the mean of its divisors is an integer number (285742080).

Almost surely, 2^6453663545 is an apocalyptic number.

It is an amenable number.

6453663545 is a deficient number, since it is larger than the sum of its proper divisors (2690083015).

6453663545 is a wasteful number, since it uses less digits than its factorization.

6453663545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4925.

The product of its digits is 3888000, while the sum is 47.

The square root of 6453663545 is about 80334.6970181627. The cubic root of 6453663545 is about 1861.8103491132.

Subtracting from 6453663545 its reverse (5453663546), we obtain a palindrome (999999999).

The spelling of 6453663545 in words is "six billion, four hundred fifty-three million, six hundred sixty-three thousand, five hundred forty-five".