28162622812 has 24 divisors (see below), whose sum is σ = 49387782080. Its totient is φ = 14051862720.

The previous prime is 28162622713. The next prime is 28162622819. The reversal of 28162622812 is 21822626182.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28162622819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4239958 + ... + 4246594.

Almost surely, 2^28162622812 is an apocalyptic number.

It is an amenable number.

28162622812 is a deficient number, since it is larger than the sum of its proper divisors (21225159268).

28162622812 is a wasteful number, since it uses less digits than its factorization.

28162622812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8701 (or 8699 counting only the distinct ones).

The product of its digits is 73728, while the sum is 40.

The spelling of 28162622812 in words is "twenty-eight billion, one hundred sixty-two million, six hundred twenty-two thousand, eight hundred twelve".