28463647638583 has 8 divisors (see below), whose sum is σ = 29091886415280. Its totient is φ = 27840622462080.

The previous prime is 28463647638541. The next prime is 28463647638593. The reversal of 28463647638583 is 38583674636482.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28463647638583 - 2¹⁷ = 28463647507511 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 (28463647638593) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1303389010 + ... + 1303410847.

It is an arithmetic number, because the mean of its divisors is an integer number (3636485801910).

Almost surely, 2^{28463647638583} is an apocalyptic number.

28463647638583 is a deficient number, since it is larger than the sum of its proper divisors (628238776697).

28463647638583 is a wasteful number, since it uses less digits than its factorization.

28463647638583 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2606800097.

The product of its digits is 3344302080, while the sum is 73.

The spelling of 28463647638583 in words is "twenty-eight trillion, four hundred sixty-three billion, six hundred forty-seven million, six hundred thirty-eight thousand, five hundred eighty-three".