28058078185 has 8 divisors (see below), whose sum is σ = 33691694976. Its totient is φ = 22431795120.

The previous prime is 28058078171. The next prime is 28058078239. The reversal of 28058078185 is 58187085082.

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

It is not a de Polignac number, because 28058078185 - 2⁹ = 28058077673 is a prime.

It is a Duffinian 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, 1825009 + ... + 1840318.

It is an arithmetic number, because the mean of its divisors is an integer number (4211461872).

Almost surely, 2^28058078185 is an apocalyptic number.

It is an amenable number.

28058078185 is a deficient number, since it is larger than the sum of its proper divisors (5633616791).

28058078185 is a wasteful number, since it uses less digits than its factorization.

28058078185 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3666863.

The product of its (nonzero) digits is 1433600, while the sum is 52.

The spelling of 28058078185 in words is "twenty-eight billion, fifty-eight million, seventy-eight thousand, one hundred eighty-five".