28501994066712 has 16 divisors (see below), whose sum is σ = 71254985166840. Its totient is φ = 9500664688896.

The previous prime is 28501994066687. The next prime is 28501994066731. The reversal of 28501994066712 is 21766049910582.

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, 593791543033 + ... + 593791543080.

Almost surely, 2^{28501994066712} is an apocalyptic number.

It is an amenable number.

28501994066712 is an abundant number, since it is smaller than the sum of its proper divisors (42752991100128).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28501994066712 is a wasteful number, since it uses less digits than its factorization.

28501994066712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1187583086122 (or 1187583086118 counting only the distinct ones).

The product of its (nonzero) digits is 13063680, while the sum is 60.

The spelling of 28501994066712 in words is "twenty-eight trillion, five hundred one billion, nine hundred ninety-four million, sixty-six thousand, seven hundred twelve".