28317750022 has 4 divisors (see below), whose sum is σ = 42476625036. Its totient is φ = 14158875010.

The previous prime is 28317749987. The next prime is 28317750049. The reversal of 28317750022 is 22005771382.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 7079437504 + ... + 7079437507.

It is an arithmetic number, because the mean of its divisors is an integer number (10619156259).

Almost surely, 2^28317750022 is an apocalyptic number.

28317750022 is a deficient number, since it is larger than the sum of its proper divisors (14158875014).

28317750022 is a wasteful number, since it uses less digits than its factorization.

28317750022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14158875013.

The product of its (nonzero) digits is 47040, while the sum is 37.

The spelling of 28317750022 in words is "twenty-eight billion, three hundred seventeen million, seven hundred fifty thousand, twenty-two".