12635453277563 has 16 divisors (see below), whose sum is σ = 13180083734400. Its totient is φ = 12103844993856.

The previous prime is 12635453277511. The next prime is 12635453277569. The reversal of 12635453277563 is 36577235453621.

It is a cyclic number.

It is not a de Polignac number, because 12635453277563 - 2²⁸ = 12635184842107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12635453277569) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9006338 + ... + 10314311.

It is an arithmetic number, because the mean of its divisors is an integer number (823755233400).

Almost surely, 2^{12635453277563} is an apocalyptic number.

12635453277563 is a deficient number, since it is larger than the sum of its proper divisors (544630456837).

12635453277563 is a wasteful number, since it uses less digits than its factorization.

12635453277563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19320986.

The product of its digits is 95256000, while the sum is 59.

The spelling of 12635453277563 in words is "twelve trillion, six hundred thirty-five billion, four hundred fifty-three million, two hundred seventy-seven thousand, five hundred sixty-three".