12582170812 has 12 divisors (see below), whose sum is σ = 22037141056. Its totient is φ = 6285844800.

The previous prime is 12582170807. The next prime is 12582170819. The reversal of 12582170812 is 21807128521.

It is a super-2 number, since 2×12582170812² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12582170819) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1304748 + ... + 1314355.

Almost surely, 2^12582170812 is an apocalyptic number.

It is an amenable number.

12582170812 is a deficient number, since it is larger than the sum of its proper divisors (9454970244).

12582170812 is a wasteful number, since it uses less digits than its factorization.

12582170812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2620308 (or 2620306 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 37.

The spelling of 12582170812 in words is "twelve billion, five hundred eighty-two million, one hundred seventy thousand, eight hundred twelve".