11539637423 has 8 divisors (see below), whose sum is σ = 11841467088. Its totient is φ = 11239329024.

The previous prime is 11539637413. The next prime is 11539637497. The reversal of 11539637423 is 32473693511.

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 11539637423 - 2²⁰ = 11538588847 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 (11539637413) 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, 364940 + ... + 395297.

It is an arithmetic number, because the mean of its divisors is an integer number (1480183386).

Almost surely, 2^11539637423 is an apocalyptic number.

11539637423 is a deficient number, since it is larger than the sum of its proper divisors (301829665).

11539637423 is an equidigital number, since it uses as much as digits as its factorization.

11539637423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 760633.

The product of its digits is 408240, while the sum is 44.

The spelling of 11539637423 in words is "eleven billion, five hundred thirty-nine million, six hundred thirty-seven thousand, four hundred twenty-three".