28660896444 has 24 divisors (see below), whose sum is σ = 66880009728. Its totient is φ = 9552977200.

The previous prime is 28660896409. The next prime is 28660896461. The reversal of 28660896444 is 44469806682.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 120469 + ... + 268019.

It is an arithmetic number, because the mean of its divisors is an integer number (2786667072).

Almost surely, 2^28660896444 is an apocalyptic number.

It is an amenable number.

28660896444 is an abundant number, since it is smaller than the sum of its proper divisors (38219113284).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28660896444 is a wasteful number, since it uses less digits than its factorization.

28660896444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163745 (or 163743 counting only the distinct ones).

The product of its (nonzero) digits is 15925248, while the sum is 57.

The spelling of 28660896444 in words is "twenty-eight billion, six hundred sixty million, eight hundred ninety-six thousand, four hundred forty-four".