28000070845 has 16 divisors (see below), whose sum is σ = 34147118592. Its totient is φ = 22036734720.

The previous prime is 28000070843. The next prime is 28000070851. The reversal of 28000070845 is 54807000082.

It is not a de Polignac number, because 28000070845 - 2¹ = 28000070843 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 28000070845.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28000070843) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79189 + ... + 249541.

It is an arithmetic number, because the mean of its divisors is an integer number (2134194912).

Almost surely, 2^28000070845 is an apocalyptic number.

It is an amenable number.

28000070845 is a deficient number, since it is larger than the sum of its proper divisors (6147047747).

28000070845 is a wasteful number, since it uses less digits than its factorization.

28000070845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170892.

The product of its (nonzero) digits is 17920, while the sum is 34.

The spelling of 28000070845 in words is "twenty-eight billion, seventy thousand, eight hundred forty-five".