13443238537 has 8 divisors (see below), whose sum is σ = 13577779904. Its totient is φ = 13308774768.

The previous prime is 13443238483. The next prime is 13443238577. The reversal of 13443238537 is 73583234431.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13443238537 - 2⁷ = 13443238409 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13443238493 and 13443238502.

It is not an unprimeable number, because it can be changed into a prime (13443238577) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 367018 + ... + 401980.

It is an arithmetic number, because the mean of its divisors is an integer number (1697222488).

Almost surely, 2^13443238537 is an apocalyptic number.

It is an amenable number.

13443238537 is a deficient number, since it is larger than the sum of its proper divisors (134541367).

13443238537 is a wasteful number, since it uses less digits than its factorization.

13443238537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38799.

The product of its digits is 725760, while the sum is 43.

The spelling of 13443238537 in words is "thirteen billion, four hundred forty-three million, two hundred thirty-eight thousand, five hundred thirty-seven".