28155741716 has 12 divisors (see below), whose sum is σ = 49947514932. Its totient is φ = 13885023168.

The previous prime is 28155741703. The next prime is 28155741743. The reversal of 28155741716 is 61714755182.

It can be written as a sum of positive squares in 2 ways, for example, as 23503956100 + 4651785616 = 153310^2 + 68204^2 .

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, 48211595 + ... + 48212178.

It is an arithmetic number, because the mean of its divisors is an integer number (4162292911).

Almost surely, 2^28155741716 is an apocalyptic number.

It is an amenable number.

28155741716 is a deficient number, since it is larger than the sum of its proper divisors (21791773216).

28155741716 is a wasteful number, since it uses less digits than its factorization.

28155741716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96423850 (or 96423848 counting only the distinct ones).

The product of its digits is 470400, while the sum is 47.

The spelling of 28155741716 in words is "twenty-eight billion, one hundred fifty-five million, seven hundred forty-one thousand, seven hundred sixteen".