13507643223 has 6 divisors (see below), whose sum is σ = 19511040224. Its totient is φ = 9005095476.

The previous prime is 13507643221. The next prime is 13507643231. The reversal of 13507643223 is 32234670531.

13507643223 is a `hidden beast` number, since 1 + 3 + 5 + 0 + 7 + 643 + 2 + 2 + 3 = 666.

It is not a de Polignac number, because 13507643223 - 2¹ = 13507643221 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 (13507643221) 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, 750424615 + ... + 750424632.

Almost surely, 2^13507643223 is an apocalyptic number.

13507643223 is a deficient number, since it is larger than the sum of its proper divisors (6003397001).

13507643223 is a wasteful number, since it uses less digits than its factorization.

13507643223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1500849253 (or 1500849250 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 36.

The spelling of 13507643223 in words is "thirteen billion, five hundred seven million, six hundred forty-three thousand, two hundred twenty-three".