28758245510647 has 16 divisors (see below), whose sum is σ = 29238608337120. Its totient is φ = 28280296281600.

The previous prime is 28758245510627. The next prime is 28758245510663. The reversal of 28758245510647 is 74601554285782.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28758245510647 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28758245510627) by changing a digit.

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, 52981947 + ... + 53521987.

It is an arithmetic number, because the mean of its divisors is an integer number (1827413021070).

Almost surely, 2^{28758245510647} is an apocalyptic number.

28758245510647 is a deficient number, since it is larger than the sum of its proper divisors (480362826473).

28758245510647 is a wasteful number, since it uses less digits than its factorization.

28758245510647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 542274.

The product of its (nonzero) digits is 150528000, while the sum is 64.

The spelling of 28758245510647 in words is "twenty-eight trillion, seven hundred fifty-eight billion, two hundred forty-five million, five hundred ten thousand, six hundred forty-seven".