12506377569 has 8 divisors (see below), whose sum is σ = 19057337280. Its totient is φ = 7146501456.

The previous prime is 12506377567. The next prime is 12506377579. The reversal of 12506377569 is 96577360521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12506377569 - 2¹ = 12506377567 is a prime.

It is a super-2 number, since 2×12506377569² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12506377567) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 297770874 + ... + 297770915.

It is an arithmetic number, because the mean of its divisors is an integer number (2382167160).

Almost surely, 2^12506377569 is an apocalyptic number.

It is an amenable number.

12506377569 is a deficient number, since it is larger than the sum of its proper divisors (6550959711).

12506377569 is an equidigital number, since it uses as much as digits as its factorization.

12506377569 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 595541799.

The product of its (nonzero) digits is 2381400, while the sum is 51.

The spelling of 12506377569 in words is "twelve billion, five hundred six million, three hundred seventy-seven thousand, five hundred sixty-nine".