28754052481 has 16 divisors (see below), whose sum is σ = 35853511680. Its totient is φ = 22403065680.

The previous prime is 28754052469. The next prime is 28754052491. The reversal of 28754052481 is 18425045782.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28754052481 is a prime.

It is a super-2 number, since 2×28754052481² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28754052491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 834660 + ... + 868426.

It is an arithmetic number, because the mean of its divisors is an integer number (2240844480).

Almost surely, 2^28754052481 is an apocalyptic number.

It is an amenable number.

28754052481 is a deficient number, since it is larger than the sum of its proper divisors (7099459199).

28754052481 is a wasteful number, since it uses less digits than its factorization.

28754052481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44844.

The product of its (nonzero) digits is 716800, while the sum is 46.

The spelling of 28754052481 in words is "twenty-eight billion, seven hundred fifty-four million, fifty-two thousand, four hundred eighty-one".