28766071612 has 12 divisors (see below), whose sum is σ = 50342630800. Its totient is φ = 14382462816.

The previous prime is 28766071597. The next prime is 28766071643. The reversal of 28766071612 is 21617066782.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18153 + ... + 240544.

Almost surely, 2^28766071612 is an apocalyptic number.

It is an amenable number.

28766071612 is a deficient number, since it is larger than the sum of its proper divisors (21576559188).

28766071612 is a wasteful number, since it uses less digits than its factorization.

28766071612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286500 (or 286498 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 46.

The spelling of 28766071612 in words is "twenty-eight billion, seven hundred sixty-six million, seventy-one thousand, six hundred twelve".