28100722002 has 8 divisors (see below), whose sum is σ = 56201444016. Its totient is φ = 9366907332.

The previous prime is 28100721997. The next prime is 28100722003. The reversal of 28100722002 is 20022700182.

It is a happy number.

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

28100722002 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (28100722003) 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, 2341726828 + ... + 2341726839.

It is an arithmetic number, because the mean of its divisors is an integer number (7025180502).

Almost surely, 2^28100722002 is an apocalyptic number.

28100722002 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

28100722002 is a wasteful number, since it uses less digits than its factorization.

28100722002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4683453672.

The product of its (nonzero) digits is 896, while the sum is 24.

The spelling of 28100722002 in words is "twenty-eight billion, one hundred million, seven hundred twenty-two thousand, two".