11739128537 has 8 divisors (see below), whose sum is σ = 11758908672. Its totient is φ = 11719364800.

The previous prime is 11739128521. The next prime is 11739128593. The reversal of 11739128537 is 73582193711.

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 11739128537 - 2⁴ = 11739128521 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11739128491 and 11739128500.

It is not an unprimeable number, because it can be changed into a prime (11739128837) 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, 2999612 + ... + 3003522.

It is an arithmetic number, because the mean of its divisors is an integer number (1469863584).

Almost surely, 2^11739128537 is an apocalyptic number.

It is an amenable number.

11739128537 is a deficient number, since it is larger than the sum of its proper divisors (19780135).

11739128537 is an equidigital number, since it uses as much as digits as its factorization.

11739128537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8199.

The product of its digits is 317520, while the sum is 47.

The spelling of 11739128537 in words is "eleven billion, seven hundred thirty-nine million, one hundred twenty-eight thousand, five hundred thirty-seven".