28748267716564 has 24 divisors (see below), whose sum is σ = 55061828746848. Its totient is φ = 13024829607840.

The previous prime is 28748267716541. The next prime is 28748267716601. The reversal of 28748267716564 is 46561776284782.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1064106559 + ... + 1064133574.

It is an arithmetic number, because the mean of its divisors is an integer number (2294242864452).

Almost surely, 2^{28748267716564} is an apocalyptic number.

It is an amenable number.

28748267716564 is a deficient number, since it is larger than the sum of its proper divisors (26313561030284).

28748267716564 is a wasteful number, since it uses less digits than its factorization.

28748267716564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2128240455 (or 2128240453 counting only the distinct ones).

The product of its digits is 1517322240, while the sum is 73.

The spelling of 28748267716564 in words is "twenty-eight trillion, seven hundred forty-eight billion, two hundred sixty-seven million, seven hundred sixteen thousand, five hundred sixty-four".