12351890927 has 4 divisors (see below), whose sum is σ = 12536247576. Its totient is φ = 12167534280.

The previous prime is 12351890879. The next prime is 12351890933. The reversal of 12351890927 is 72909815321.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12351890927 - 2¹² = 12351886831 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 (12351890987) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 92178224 + ... + 92178357.

It is an arithmetic number, because the mean of its divisors is an integer number (3134061894).

Almost surely, 2^12351890927 is an apocalyptic number.

12351890927 is a deficient number, since it is larger than the sum of its proper divisors (184356649).

12351890927 is an equidigital number, since it uses as much as digits as its factorization.

12351890927 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184356648.

The product of its (nonzero) digits is 272160, while the sum is 47.

The spelling of 12351890927 in words is "twelve billion, three hundred fifty-one million, eight hundred ninety thousand, nine hundred twenty-seven".