28028574086 has 8 divisors (see below), whose sum is σ = 42057657864. Its totient is φ = 14009354800.

The previous prime is 28028574053. The next prime is 28028574131. The reversal of 28028574086 is 68047582082.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2459015 + ... + 2470386.

It is an arithmetic number, because the mean of its divisors is an integer number (5257207233).

Almost surely, 2^28028574086 is an apocalyptic number.

28028574086 is a deficient number, since it is larger than the sum of its proper divisors (14029083778).

28028574086 is a wasteful number, since it uses less digits than its factorization.

28028574086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4932246.

The product of its (nonzero) digits is 1720320, while the sum is 50.

The spelling of 28028574086 in words is "twenty-eight billion, twenty-eight million, five hundred seventy-four thousand, eighty-six".