12536489437 has 8 divisors (see below), whose sum is σ = 12632659200. Its totient is φ = 12440480400.

The previous prime is 12536489429. The next prime is 12536489453. The reversal of 12536489437 is 73498463521.

It is a happy number.

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 12536489437 - 2³ = 12536489429 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 (12536489737) 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, 118812 + ... + 197962.

It is an arithmetic number, because the mean of its divisors is an integer number (1579082400).

Almost surely, 2^12536489437 is an apocalyptic number.

It is an amenable number.

12536489437 is a deficient number, since it is larger than the sum of its proper divisors (96169763).

12536489437 is a wasteful number, since it uses less digits than its factorization.

12536489437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80363.

The product of its digits is 4354560, while the sum is 52.

The spelling of 12536489437 in words is "twelve billion, five hundred thirty-six million, four hundred eighty-nine thousand, four hundred thirty-seven".