12145738747 has 2 divisors, whose sum is σ = 12145738748. Its totient is φ = 12145738746.

The previous prime is 12145738727. The next prime is 12145738811. The reversal of 12145738747 is 74783754121.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12145738747 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12145738747.

It is not a weakly prime, because it can be changed into another prime (12145738727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6072869373 + 6072869374.

It is an arithmetic number, because the mean of its divisors is an integer number (6072869374).

Almost surely, 2^12145738747 is an apocalyptic number.

12145738747 is a deficient number, since it is larger than the sum of its proper divisors (1).

12145738747 is an equidigital number, since it uses as much as digits as its factorization.

12145738747 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1317120, while the sum is 49.

The spelling of 12145738747 in words is "twelve billion, one hundred forty-five million, seven hundred thirty-eight thousand, seven hundred forty-seven".