12145738707 has 12 divisors (see below), whose sum is σ = 17582923800. Its totient is φ = 8079122688.

The previous prime is 12145738691. The next prime is 12145738721. The reversal of 12145738707 is 70783754121.

12145738707 is a `hidden beast` number, since 1 + 2 + 1 + 4 + 573 + 8 + 70 + 7 = 666.

It is not a de Polignac number, because 12145738707 - 2⁴ = 12145738691 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12145738727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1498773 + ... + 1506854.

It is an arithmetic number, because the mean of its divisors is an integer number (1465243650).

Almost surely, 2^12145738707 is an apocalyptic number.

12145738707 is a deficient number, since it is larger than the sum of its proper divisors (5437185093).

12145738707 is a wasteful number, since it uses less digits than its factorization.

12145738707 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3006082 (or 3006079 counting only the distinct ones).

The product of its (nonzero) digits is 329280, while the sum is 45.

The spelling of 12145738707 in words is "twelve billion, one hundred forty-five million, seven hundred thirty-eight thousand, seven hundred seven".