13243534407 has 6 divisors (see below), whose sum is σ = 19129549712. Its totient is φ = 8829022932.

The previous prime is 13243534399. The next prime is 13243534427. The reversal of 13243534407 is 70443534231.

13243534407 is a `hidden beast` number, since 1 + 3 + 243 + 5 + 3 + 4 + 407 = 666.

It is not a de Polignac number, because 13243534407 - 2³ = 13243534399 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 (13243534427) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 735751903 + ... + 735751920.

Almost surely, 2^13243534407 is an apocalyptic number.

13243534407 is a deficient number, since it is larger than the sum of its proper divisors (5886015305).

13243534407 is a wasteful number, since it uses less digits than its factorization.

13243534407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1471503829 (or 1471503826 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 36.

The spelling of 13243534407 in words is "thirteen billion, two hundred forty-three million, five hundred thirty-four thousand, four hundred seven".