28180317422 has 8 divisors (see below), whose sum is σ = 42271211136. Its totient is φ = 14089913712.

The previous prime is 28180317391. The next prime is 28180317433. The reversal of 28180317422 is 22471308182.

28180317422 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 108083 + ... + 260849.

It is an arithmetic number, because the mean of its divisors is an integer number (5283901392).

Almost surely, 2^28180317422 is an apocalyptic number.

28180317422 is a deficient number, since it is larger than the sum of its proper divisors (14090893714).

28180317422 is a wasteful number, since it uses less digits than its factorization.

28180317422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245002.

The product of its (nonzero) digits is 43008, while the sum is 38.

The spelling of 28180317422 in words is "twenty-eight billion, one hundred eighty million, three hundred seventeen thousand, four hundred twenty-two".