28666010012 has 6 divisors (see below), whose sum is σ = 50165517528. Its totient is φ = 14333005004.

The previous prime is 28666009997. The next prime is 28666010027. The reversal of 28666010012 is 21001066682.

It is an interprime number because it is at equal distance from previous prime (28666009997) and next prime (28666010027).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3583251248 + ... + 3583251255.

It is an arithmetic number, because the mean of its divisors is an integer number (8360919588).

Almost surely, 2^28666010012 is an apocalyptic number.

It is an amenable number.

28666010012 is a deficient number, since it is larger than the sum of its proper divisors (21499507516).

28666010012 is a wasteful number, since it uses less digits than its factorization.

28666010012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7166502507 (or 7166502505 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 32.

Adding to 28666010012 its reverse (21001066682), we get a palindrome (49667076694).

The spelling of 28666010012 in words is "twenty-eight billion, six hundred sixty-six million, ten thousand, twelve".