12894521036 has 48 divisors (see below), whose sum is σ = 23142581280. Its totient is φ = 6284490240.

The previous prime is 12894521009. The next prime is 12894521039. The reversal of 12894521036 is 63012549821.

It is a junction number, because it is equal to n+sod(n) for n = 12894520984 and 12894521002.

It is not an unprimeable number, because it can be changed into a prime (12894521039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23149670 + ... + 23150226.

It is an arithmetic number, because the mean of its divisors is an integer number (482137110).

Almost surely, 2^12894521036 is an apocalyptic number.

It is an amenable number.

12894521036 is a deficient number, since it is larger than the sum of its proper divisors (10248060244).

12894521036 is a wasteful number, since it uses less digits than its factorization.

12894521036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1274 (or 1272 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 41.

The spelling of 12894521036 in words is "twelve billion, eight hundred ninety-four million, five hundred twenty-one thousand, thirty-six".