28393741838337 has 4 divisors (see below), whose sum is σ = 37858322451120. Its totient is φ = 18929161225556.

The previous prime is 28393741838309. The next prime is 28393741838369. The reversal of 28393741838337 is 73383814739382.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 28393741838337 - 2¹⁰ = 28393741837313 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28393746838337) 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, 4732290306387 + ... + 4732290306392.

It is an arithmetic number, because the mean of its divisors is an integer number (9464580612780).

Almost surely, 2^{28393741838337} is an apocalyptic number.

It is an amenable number.

28393741838337 is a deficient number, since it is larger than the sum of its proper divisors (9464580612783).

28393741838337 is an equidigital number, since it uses as much as digits as its factorization.

28393741838337 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9464580612782.

The product of its digits is 438939648, while the sum is 69.

The spelling of 28393741838337 in words is "twenty-eight trillion, three hundred ninety-three billion, seven hundred forty-one million, eight hundred thirty-eight thousand, three hundred thirty-seven".