12136735623 has 8 divisors (see below), whose sum is σ = 16185289600. Its totient is φ = 8089669368.

The previous prime is 12136735609. The next prime is 12136735651. The reversal of 12136735623 is 32653763121.

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

It is not a de Polignac number, because 12136735623 - 2⁸ = 12136735367 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 (12136737623) 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, 352753 + ... + 385626.

It is an arithmetic number, because the mean of its divisors is an integer number (2023161200).

Almost surely, 2^12136735623 is an apocalyptic number.

12136735623 is a deficient number, since it is larger than the sum of its proper divisors (4048553977).

12136735623 is an equidigital number, since it uses as much as digits as its factorization.

12136735623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 743861.

The product of its digits is 136080, while the sum is 39.

The spelling of 12136735623 in words is "twelve billion, one hundred thirty-six million, seven hundred thirty-five thousand, six hundred twenty-three".