28117153445 has 8 divisors (see below), whose sum is σ = 34055917344. Its totient is φ = 22283500624.

The previous prime is 28117153411. The next prime is 28117153453. The reversal of 28117153445 is 54435171182.

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 28117153445 - 2¹² = 28117149349 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 26277179 + ... + 26278248.

It is an arithmetic number, because the mean of its divisors is an integer number (4256989668).

Almost surely, 2^28117153445 is an apocalyptic number.

It is an amenable number.

28117153445 is a deficient number, since it is larger than the sum of its proper divisors (5938763899).

28117153445 is a wasteful number, since it uses less digits than its factorization.

28117153445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52555539.

The product of its digits is 134400, while the sum is 41.

The spelling of 28117153445 in words is "twenty-eight billion, one hundred seventeen million, one hundred fifty-three thousand, four hundred forty-five".