28194573348551 has 8 divisors (see below), whose sum is σ = 28599936597504. Its totient is φ = 27789439449240.

The previous prime is 28194573348521. The next prime is 28194573348553. The reversal of 28194573348551 is 15584337549182.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28194573348551 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28194573348553) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57089771 + ... + 57581516.

It is an arithmetic number, because the mean of its divisors is an integer number (3574992074688).

Almost surely, 2^{28194573348551} is an apocalyptic number.

28194573348551 is a deficient number, since it is larger than the sum of its proper divisors (405363248953).

28194573348551 is a wasteful number, since it uses less digits than its factorization.

28194573348551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114674821.

The product of its digits is 145152000, while the sum is 65.

The spelling of 28194573348551 in words is "twenty-eight trillion, one hundred ninety-four billion, five hundred seventy-three million, three hundred forty-eight thousand, five hundred fifty-one".