12888742641 has 8 divisors (see below), whose sum is σ = 17185540320. Its totient is φ = 8592220032.

The previous prime is 12888742583. The next prime is 12888742667. The reversal of 12888742641 is 14624788821.

It is a happy number.

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

It is not a de Polignac number, because 12888742641 - 2⁶ = 12888742577 is a prime.

It is a super-2 number, since 2×12888742641² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12888742681) 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, 99126 + ... + 188688.

It is an arithmetic number, because the mean of its divisors is an integer number (2148192540).

Almost surely, 2^12888742641 is an apocalyptic number.

It is an amenable number.

12888742641 is a deficient number, since it is larger than the sum of its proper divisors (4296797679).

12888742641 is an equidigital number, since it uses as much as digits as its factorization.

12888742641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137535.

The product of its digits is 1376256, while the sum is 51.

The spelling of 12888742641 in words is "twelve billion, eight hundred eighty-eight million, seven hundred forty-two thousand, six hundred forty-one".