28493826815 has 8 divisors (see below), whose sum is σ = 34753126848. Its totient is φ = 22421371680.

The previous prime is 28493826761. The next prime is 28493826821. The reversal of 28493826815 is 51862839482.

It is a happy number.

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

It is not a de Polignac number, because 28493826815 - 2²² = 28489632511 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, 46710887 + ... + 46711496.

It is an arithmetic number, because the mean of its divisors is an integer number (4344140856).

Almost surely, 2^28493826815 is an apocalyptic number.

28493826815 is a deficient number, since it is larger than the sum of its proper divisors (6259300033).

28493826815 is an equidigital number, since it uses as much as digits as its factorization.

28493826815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93422449.

The product of its digits is 6635520, while the sum is 56.

The spelling of 28493826815 in words is "twenty-eight billion, four hundred ninety-three million, eight hundred twenty-six thousand, eight hundred fifteen".