28544364018075 has 54 divisors (see below), whose sum is σ = 48319759892124. Its totient is φ = 14868585758880.

The previous prime is 28544364018043. The next prime is 28544364018101. The reversal of 28544364018075 is 57081046344582.

It is not a de Polignac number, because 28544364018075 - 2⁵ = 28544364018043 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 1989563052 + ... + 1989577398.

Almost surely, 2^{28544364018075} is an apocalyptic number.

28544364018075 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

28544364018075 is a deficient number, since it is larger than the sum of its proper divisors (19775395874049).

28544364018075 is an frugal number, since it uses more digits than its factorization.

28544364018075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28793 (or 14398 counting only the distinct ones).

The product of its (nonzero) digits is 25804800, while the sum is 57.

The spelling of 28544364018075 in words is "twenty-eight trillion, five hundred forty-four billion, three hundred sixty-four million, eighteen thousand, seventy-five".