28083740884 has 6 divisors (see below), whose sum is σ = 49146546554. Its totient is φ = 14041870440.

The previous prime is 28083740873. The next prime is 28083740977. The reversal of 28083740884 is 48804738082.

It can be written as a sum of positive squares in only one way, i.e., 19176156484 + 8907584400 = 138478^2 + 94380^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3510467607 + ... + 3510467614.

Almost surely, 2^28083740884 is an apocalyptic number.

It is an amenable number.

28083740884 is a deficient number, since it is larger than the sum of its proper divisors (21062805670).

28083740884 is a wasteful number, since it uses less digits than its factorization.

28083740884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7020935225 (or 7020935223 counting only the distinct ones).

The product of its (nonzero) digits is 2752512, while the sum is 52.

The spelling of 28083740884 in words is "twenty-eight billion, eighty-three million, seven hundred forty thousand, eight hundred eighty-four".