13125688263 has 12 divisors (see below), whose sum is σ = 18979969840. Its totient is φ = 8740931616.

The previous prime is 13125688241. The next prime is 13125688267. The reversal of 13125688263 is 36288652131.

13125688263 is a `hidden beast` number, since 1 + 3 + 1 + 2 + 568 + 82 + 6 + 3 = 666.

It is not a de Polignac number, because 13125688263 - 2²¹ = 13123591111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13125688267) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 785206 + ... + 801747.

Almost surely, 2^13125688263 is an apocalyptic number.

13125688263 is a deficient number, since it is larger than the sum of its proper divisors (5854281577).

13125688263 is a wasteful number, since it uses less digits than its factorization.

13125688263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1587878 (or 1587875 counting only the distinct ones).

The product of its digits is 414720, while the sum is 45.

The spelling of 13125688263 in words is "thirteen billion, one hundred twenty-five million, six hundred eighty-eight thousand, two hundred sixty-three".