28618254071 has 16 divisors (see below), whose sum is σ = 31689439488. Its totient is φ = 25626014400.

The previous prime is 28618254047. The next prime is 28618254083. The reversal of 28618254071 is 17045281682.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28618254071 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 (28618254671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 840056 + ... + 873458.

It is an arithmetic number, because the mean of its divisors is an integer number (1980589968).

Almost surely, 2^28618254071 is an apocalyptic number.

28618254071 is a deficient number, since it is larger than the sum of its proper divisors (3071185417).

28618254071 is a wasteful number, since it uses less digits than its factorization.

28618254071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34582.

The product of its (nonzero) digits is 215040, while the sum is 44.

The spelling of 28618254071 in words is "twenty-eight billion, six hundred eighteen million, two hundred fifty-four thousand, seventy-one".