28586641043 has 4 divisors (see below), whose sum is σ = 28588602648. Its totient is φ = 28584679440.

The previous prime is 28586640991. The next prime is 28586641063. The reversal of 28586641043 is 34014668582.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 28586641043 - 2¹⁴ = 28586624659 is a prime.

It is a super-2 number, since 2×28586641043² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28586641063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 958778 + ... + 988143.

It is an arithmetic number, because the mean of its divisors is an integer number (7147150662).

Almost surely, 2^28586641043 is an apocalyptic number.

28586641043 is a deficient number, since it is larger than the sum of its proper divisors (1961605).

28586641043 is a wasteful number, since it uses less digits than its factorization.

28586641043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1961604.

The product of its (nonzero) digits is 1105920, while the sum is 47.

The spelling of 28586641043 in words is "twenty-eight billion, five hundred eighty-six million, six hundred forty-one thousand, forty-three".