28420170194350 has 24 divisors (see below), whose sum is σ = 57667108977288. Its totient is φ = 10334607343200.

The previous prime is 28420170194347. The next prime is 28420170194369. The reversal of 28420170194350 is 5349107102482.

It is a self number, because there is not a number n which added to its sum of digits gives 28420170194350.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25836517809 + ... + 25836518908.

It is an arithmetic number, because the mean of its divisors is an integer number (2402796207387).

Almost surely, 2^{28420170194350} is an apocalyptic number.

28420170194350 is an abundant number, since it is smaller than the sum of its proper divisors (29246938782938).

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

28420170194350 is a wasteful number, since it uses less digits than its factorization.

28420170194350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51673036740 (or 51673036735 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 46.

The spelling of 28420170194350 in words is "twenty-eight trillion, four hundred twenty billion, one hundred seventy million, one hundred ninety-four thousand, three hundred fifty".