28718296212 has 24 divisors (see below), whose sum is σ = 69170950912. Its totient is φ = 9263966400.

The previous prime is 28718296169. The next prime is 28718296219. The reversal of 28718296212 is 21269281782.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28718296219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38599489 + ... + 38600232.

Almost surely, 2^28718296212 is an apocalyptic number.

It is an amenable number.

28718296212 is an abundant number, since it is smaller than the sum of its proper divisors (40452654700).

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

28718296212 is a wasteful number, since it uses less digits than its factorization.

28718296212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77199759 (or 77199757 counting only the distinct ones).

The product of its digits is 387072, while the sum is 48.

The spelling of 28718296212 in words is "twenty-eight billion, seven hundred eighteen million, two hundred ninety-six thousand, two hundred twelve".