2645034645563 has 8 divisors (see below), whose sum is σ = 2650692172800. Its totient is φ = 2639377684008.

The previous prime is 2645034645541. The next prime is 2645034645571. The reversal of 2645034645563 is 3655464305462.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2645034645563 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2645034645523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9994970 + ... + 10256192.

It is an arithmetic number, because the mean of its divisors is an integer number (331336521600).

Almost surely, 2^{2645034645563} is an apocalyptic number.

2645034645563 is a deficient number, since it is larger than the sum of its proper divisors (5657527237).

2645034645563 is a wasteful number, since it uses less digits than its factorization.

2645034645563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282841.

The product of its (nonzero) digits is 31104000, while the sum is 53.

The spelling of 2645034645563 in words is "two trillion, six hundred forty-five billion, thirty-four million, six hundred forty-five thousand, five hundred sixty-three".