28093724085 has 64 divisors (see below), whose sum is σ = 55315353600. Its totient is φ = 11882468352.

The previous prime is 28093724081. The next prime is 28093724089. The reversal of 28093724085 is 58042739082.

It is an interprime number because it is at equal distance from previous prime (28093724081) and next prime (28093724089).

It is not a de Polignac number, because 28093724085 - 2² = 28093724081 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28093724081) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 28065 + ... + 238694.

It is an arithmetic number, because the mean of its divisors is an integer number (864302400).

Almost surely, 2^28093724085 is an apocalyptic number.

It is an amenable number.

28093724085 is a deficient number, since it is larger than the sum of its proper divisors (27221629515).

28093724085 is a wasteful number, since it uses less digits than its factorization.

28093724085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266850.

The product of its (nonzero) digits is 967680, while the sum is 48.

The spelling of 28093724085 in words is "twenty-eight billion, ninety-three million, seven hundred twenty-four thousand, eighty-five".