28172119076 has 6 divisors (see below), whose sum is σ = 49301208390. Its totient is φ = 14086059536.

The previous prime is 28172119021. The next prime is 28172119103. The reversal of 28172119076 is 67091127182.

It can be written as a sum of positive squares in only one way, i.e., 20170816576 + 8001302500 = 142024^2 + 89450^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3521514881 + ... + 3521514888.

It is an arithmetic number, because the mean of its divisors is an integer number (8216868065).

Almost surely, 2^28172119076 is an apocalyptic number.

It is an amenable number.

28172119076 is a deficient number, since it is larger than the sum of its proper divisors (21129089314).

28172119076 is a wasteful number, since it uses less digits than its factorization.

28172119076 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7043029773 (or 7043029771 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 44.

The spelling of 28172119076 in words is "twenty-eight billion, one hundred seventy-two million, one hundred nineteen thousand, seventy-six".