28150243664 has 10 divisors (see below), whose sum is σ = 54541097130. Its totient is φ = 14075121824.

The previous prime is 28150243631. The next prime is 28150243739. The reversal of 28150243664 is 46634205182.

It can be written as a sum of positive squares in only one way, i.e., 22494000400 + 5656243264 = 149980^2 + 75208^2 .

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, 879695099 + ... + 879695130.

It is an arithmetic number, because the mean of its divisors is an integer number (5454109713).

Almost surely, 2^28150243664 is an apocalyptic number.

It is an amenable number.

28150243664 is a deficient number, since it is larger than the sum of its proper divisors (26390853466).

28150243664 is a wasteful number, since it uses less digits than its factorization.

28150243664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1759390237 (or 1759390231 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 41.

The spelling of 28150243664 in words is "twenty-eight billion, one hundred fifty million, two hundred forty-three thousand, six hundred sixty-four".