13503654423 has 40 divisors (see below), whose sum is σ = 23277782528. Its totient is φ = 7641424656.

The previous prime is 13503654383. The next prime is 13503654431. The reversal of 13503654423 is 32445630531.

13503654423 is a `hidden beast` number, since 13 + 50 + 36 + 544 + 23 = 666.

It is not a de Polignac number, because 13503654423 - 2¹⁰ = 13503653399 is a prime.

It is a super-4 number, since 4×13503654423⁴ (a number of 42 digits) contains 4444 as substring.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13503654433) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 57211 + ... + 174012.

Almost surely, 2^13503654423 is an apocalyptic number.

13503654423 is a deficient number, since it is larger than the sum of its proper divisors (9774128105).

13503654423 is a wasteful number, since it uses less digits than its factorization.

13503654423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231345 (or 231336 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 36.

The spelling of 13503654423 in words is "thirteen billion, five hundred three million, six hundred fifty-four thousand, four hundred twenty-three".