28372839393 has 8 divisors (see below), whose sum is σ = 38753146656. Its totient is φ = 18453879200.

The previous prime is 28372839379. The next prime is 28372839413. The reversal of 28372839393 is 39393827382.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 28372839393 - 2¹⁴ = 28372823009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28372839343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 115336623 + ... + 115336868.

It is an arithmetic number, because the mean of its divisors is an integer number (4844143332).

Almost surely, 2^28372839393 is an apocalyptic number.

It is an amenable number.

28372839393 is a deficient number, since it is larger than the sum of its proper divisors (10380307263).

28372839393 is a wasteful number, since it uses less digits than its factorization.

28372839393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230673535.

The product of its digits is 11757312, while the sum is 57.

The spelling of 28372839393 in words is "twenty-eight billion, three hundred seventy-two million, eight hundred thirty-nine thousand, three hundred ninety-three".