12291075642699 has 24 divisors (see below), whose sum is σ = 20721732395520. Its totient is φ = 6874036224048.

The previous prime is 12291075642647. The next prime is 12291075642899. The reversal of 12291075642699 is 99624657019221.

12291075642699 is a `hidden beast` number, since 1 + 2 + 2 + 9 + 1 + 0 + 7 + 564 + 2 + 69 + 9 = 666.

It is not a de Polignac number, because 12291075642699 - 2⁹ = 12291075642187 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (12291075642199) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2075491069 + ... + 2075496990.

It is an arithmetic number, because the mean of its divisors is an integer number (863405516480).

Almost surely, 2^{12291075642699} is an apocalyptic number.

12291075642699 is a deficient number, since it is larger than the sum of its proper divisors (8430656752821).

12291075642699 is a wasteful number, since it uses less digits than its factorization.

12291075642699 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4150988119 (or 4150988116 counting only the distinct ones).

The product of its (nonzero) digits is 29393280, while the sum is 63.

The spelling of 12291075642699 in words is "twelve trillion, two hundred ninety-one billion, seventy-five million, six hundred forty-two thousand, six hundred ninety-nine".