28722180230 has 8 divisors (see below), whose sum is σ = 51699924432. Its totient is φ = 11488872088.

The previous prime is 28722180209. The next prime is 28722180239. The reversal of 28722180230 is 3208122782.

It is a happy number.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28722180239) 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, 1436109002 + ... + 1436109021.

It is an arithmetic number, because the mean of its divisors is an integer number (6462490554).

Almost surely, 2^28722180230 is an apocalyptic number.

28722180230 is a deficient number, since it is larger than the sum of its proper divisors (22977744202).

28722180230 is a wasteful number, since it uses less digits than its factorization.

28722180230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2872218030.

The product of its (nonzero) digits is 21504, while the sum is 35.

The spelling of 28722180230 in words is "twenty-eight billion, seven hundred twenty-two million, one hundred eighty thousand, two hundred thirty".