13245646263 has 24 divisors (see below), whose sum is σ = 19055001600. Its totient is φ = 8161571520.

The previous prime is 13245646247. The next prime is 13245646273. The reversal of 13245646263 is 36264654231.

It is a happy number.

It is not a de Polignac number, because 13245646263 - 2⁴ = 13245646247 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13245646223) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26698 + ... + 164936.

It is an arithmetic number, because the mean of its divisors is an integer number (793958400).

Almost surely, 2^13245646263 is an apocalyptic number.

13245646263 is a deficient number, since it is larger than the sum of its proper divisors (5809355337).

13245646263 is a wasteful number, since it uses less digits than its factorization.

13245646263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138343 (or 138302 counting only the distinct ones).

The product of its digits is 622080, while the sum is 42.

The spelling of 13245646263 in words is "thirteen billion, two hundred forty-five million, six hundred forty-six thousand, two hundred sixty-three".