13663026475 has 18 divisors (see below), whose sum is σ = 19708220364. Its totient is φ = 9368931600.

The previous prime is 13663026451. The next prime is 13663026479. The reversal of 13663026475 is 57462036631.

It is a de Polignac number, because none of the positive numbers 2^k-13663026475 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13663026479) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 5575521 + ... + 5577970.

Almost surely, 2^13663026475 is an apocalyptic number.

13663026475 is a deficient number, since it is larger than the sum of its proper divisors (6045193889).

13663026475 is a wasteful number, since it uses less digits than its factorization.

13663026475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11153515 (or 11153503 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 43.

The spelling of 13663026475 in words is "thirteen billion, six hundred sixty-three million, twenty-six thousand, four hundred seventy-five".