28446257063 has 16 divisors (see below), whose sum is σ = 34986671424. Its totient is φ = 22572034560.

The previous prime is 28446257057. The next prime is 28446257071. The reversal of 28446257063 is 36075264482.

It is a cyclic number.

It is not a de Polignac number, because 28446257063 - 2¹⁰ = 28446256039 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28446256999 and 28446257017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28446257033) 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, 1952120 + ... + 1966637.

It is an arithmetic number, because the mean of its divisors is an integer number (2186666964).

Almost surely, 2^28446257063 is an apocalyptic number.

28446257063 is a deficient number, since it is larger than the sum of its proper divisors (6540414361).

28446257063 is a wasteful number, since it uses less digits than its factorization.

28446257063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3918842.

The product of its (nonzero) digits is 1935360, while the sum is 47.

The spelling of 28446257063 in words is "twenty-eight billion, four hundred forty-six million, two hundred fifty-seven thousand, sixty-three".