12331649427 has 8 divisors (see below), whose sum is σ = 16443023760. Its totient is φ = 8220687360.

The previous prime is 12331649419. The next prime is 12331649441. The reversal of 12331649427 is 72494613321.

It is a happy number.

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

It is not a de Polignac number, because 12331649427 - 2³ = 12331649419 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12331649467) 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, 24774 + ... + 158987.

It is an arithmetic number, because the mean of its divisors is an integer number (2055377970).

Almost surely, 2^12331649427 is an apocalyptic number.

12331649427 is a deficient number, since it is larger than the sum of its proper divisors (4111374333).

12331649427 is a wasteful number, since it uses less digits than its factorization.

12331649427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206133.

The product of its digits is 217728, while the sum is 42.

The spelling of 12331649427 in words is "twelve billion, three hundred thirty-one million, six hundred forty-nine thousand, four hundred twenty-seven".