12643023848570 has 32 divisors (see below), whose sum is σ = 24272000144208. Its totient is φ = 4724984086528.

The previous prime is 12643023848569. The next prime is 12643023848573. The reversal of 12643023848570 is 7584832034621.

It can be written as a sum of positive squares in 8 ways, for example, as 10056642630841 + 2586381217729 = 3171221^2 + 1608223^2 .

It is not an unprimeable number, because it can be changed into a prime (12643023848573) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 271402727 + ... + 271449306.

Almost surely, 2^{12643023848570} is an apocalyptic number.

12643023848570 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12643023848570 is a deficient number, since it is larger than the sum of its proper divisors (11628976295638).

12643023848570 is a wasteful number, since it uses less digits than its factorization.

12643023848570 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 542852194.

The product of its (nonzero) digits is 7741440, while the sum is 53.

The spelling of 12643023848570 in words is "twelve trillion, six hundred forty-three billion, twenty-three million, eight hundred forty-eight thousand, five hundred seventy".