28212426192 has 80 divisors (see below), whose sum is σ = 73693908288. Its totient is φ = 9299896320.

The previous prime is 28212426173. The next prime is 28212426197. The reversal of 28212426192 is 29162421282.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 28212426192.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28212426197) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1834728 + ... + 1850040.

Almost surely, 2^28212426192 is an apocalyptic number.

It is an amenable number.

28212426192 is an abundant number, since it is smaller than the sum of its proper divisors (45481482096).

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

28212426192 is a wasteful number, since it uses less digits than its factorization.

28212426192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15748 (or 15742 counting only the distinct ones).

The product of its digits is 55296, while the sum is 39.

The spelling of 28212426192 in words is "twenty-eight billion, two hundred twelve million, four hundred twenty-six thousand, one hundred ninety-two".