28081207758748 has 48 divisors (see below), whose sum is σ = 51937620215040. Its totient is φ = 13247867520000.

The previous prime is 28081207758697. The next prime is 28081207758839. The reversal of 28081207758748 is 84785770218082.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 465252540 + ... + 465312892.

It is an arithmetic number, because the mean of its divisors is an integer number (1082033754480).

Almost surely, 2^{28081207758748} is an apocalyptic number.

It is an amenable number.

28081207758748 is a deficient number, since it is larger than the sum of its proper divisors (23856412456292).

28081207758748 is a wasteful number, since it uses less digits than its factorization.

28081207758748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85018 (or 85016 counting only the distinct ones).

The product of its (nonzero) digits is 112394240, while the sum is 67.

The spelling of 28081207758748 in words is "twenty-eight trillion, eighty-one billion, two hundred seven million, seven hundred fifty-eight thousand, seven hundred forty-eight".