12894751842609 has 384 divisors, whose sum is σ = 23553787699200. Its totient is φ = 6120789442560.

The previous prime is 12894751842593. The next prime is 12894751842619. The reversal of 12894751842609 is 90624815749821.

It is not a de Polignac number, because 12894751842609 - 2⁴ = 12894751842593 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12894751842609.

It is not an unprimeable number, because it can be changed into a prime (12894751842619) by changing a digit.

It is a polite number, since it can be written in 383 ways as a sum of consecutive naturals, for example, 29373010812 + ... + 29373011250.

It is an arithmetic number, because the mean of its divisors is an integer number (61337988800).

Almost surely, 2^{12894751842609} is an apocalyptic number.

12894751842609 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

12894751842609 is a deficient number, since it is larger than the sum of its proper divisors (10659035856591).

12894751842609 is a wasteful number, since it uses less digits than its factorization.

12894751842609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 785 (or 772 counting only the distinct ones).

The product of its (nonzero) digits is 69672960, while the sum is 66.

The spelling of 12894751842609 in words is "twelve trillion, eight hundred ninety-four billion, seven hundred fifty-one million, eight hundred forty-two thousand, six hundred nine".