28871743016 has 8 divisors (see below), whose sum is σ = 54134518170. Its totient is φ = 14435871504.

The previous prime is 28871743013. The next prime is 28871743031. The reversal of 28871743016 is 61034717882.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 24376576900 + 4495166116 = 156130^2 + 67046^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (28871743013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1804483931 + ... + 1804483946.

Almost surely, 2^28871743016 is an apocalyptic number.

It is an amenable number.

28871743016 is a deficient number, since it is larger than the sum of its proper divisors (25262775154).

28871743016 is a wasteful number, since it uses less digits than its factorization.

28871743016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3608967883 (or 3608967879 counting only the distinct ones).

The product of its (nonzero) digits is 451584, while the sum is 47.

The spelling of 28871743016 in words is "twenty-eight billion, eight hundred seventy-one million, seven hundred forty-three thousand, sixteen".