28356674091385 has 8 divisors (see below), whose sum is σ = 34507276641216. Its totient is φ = 22365827452080.

The previous prime is 28356674091359. The next prime is 28356674091401. The reversal of 28356674091385 is 58319047665382.

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

It is not a de Polignac number, because 28356674091385 - 2⁹ = 28356674090873 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 28356674091385.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39938977239 + ... + 39938977948.

It is an arithmetic number, because the mean of its divisors is an integer number (4313409580152).

It is a 1-persistent number, because it is pandigital, but 2⋅28356674091385 = 56713348182770 is not.

Almost surely, 2^{28356674091385} is an apocalyptic number.

It is an amenable number.

28356674091385 is a deficient number, since it is larger than the sum of its proper divisors (6150602549831).

28356674091385 is an equidigital number, since it uses as much as digits as its factorization.

28356674091385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79877955263.

The product of its (nonzero) digits is 261273600, while the sum is 67.

The spelling of 28356674091385 in words is "twenty-eight trillion, three hundred fifty-six billion, six hundred seventy-four million, ninety-one thousand, three hundred eighty-five".