28253222902 has 8 divisors (see below), whose sum is σ = 42382423512. Its totient is φ = 14125748400.

The previous prime is 28253222863. The next prime is 28253222909. The reversal of 28253222902 is 20922235282.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28253222909) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 389799 + ... + 456562.

It is an arithmetic number, because the mean of its divisors is an integer number (5297802939).

Almost surely, 2^28253222902 is an apocalyptic number.

28253222902 is a deficient number, since it is larger than the sum of its proper divisors (14129200610).

28253222902 is a wasteful number, since it uses less digits than its factorization.

28253222902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 863054.

The product of its (nonzero) digits is 69120, while the sum is 37.

The spelling of 28253222902 in words is "twenty-eight billion, two hundred fifty-three million, two hundred twenty-two thousand, nine hundred two".