28076825887 has 8 divisors (see below), whose sum is σ = 30630585600. Its totient is φ = 25523286360.

The previous prime is 28076825873. The next prime is 28076825893. The reversal of 28076825887 is 78852867082.

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

It is not a de Polignac number, because 28076825887 - 2⁷ = 28076825759 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28076825807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 326748 + ... + 403630.

It is an arithmetic number, because the mean of its divisors is an integer number (3828823200).

Almost surely, 2^28076825887 is an apocalyptic number.

28076825887 is a deficient number, since it is larger than the sum of its proper divisors (2553759713).

28076825887 is a wasteful number, since it uses less digits than its factorization.

28076825887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110093.

The product of its (nonzero) digits is 24084480, while the sum is 61.

The spelling of 28076825887 in words is "twenty-eight billion, seventy-six million, eight hundred twenty-five thousand, eight hundred eighty-seven".