12091347375 has 32 divisors (see below), whose sum is σ = 20587936512. Its totient is φ = 6298740000.

The previous prime is 12091347371. The next prime is 12091347383. The reversal of 12091347375 is 57374319021.

It is not a de Polignac number, because 12091347375 - 2² = 12091347371 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12091347371) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 358801 + ... + 391050.

It is an arithmetic number, because the mean of its divisors is an integer number (643373016).

Almost surely, 2^12091347375 is an apocalyptic number.

12091347375 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12091347375 is a deficient number, since it is larger than the sum of its proper divisors (8496589137).

12091347375 is an equidigital number, since it uses as much as digits as its factorization.

12091347375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 749912 (or 749902 counting only the distinct ones).

The product of its (nonzero) digits is 158760, while the sum is 42.

The spelling of 12091347375 in words is "twelve billion, ninety-one million, three hundred forty-seven thousand, three hundred seventy-five".