28640026043 has 8 divisors (see below), whose sum is σ = 28866140160. Its totient is φ = 28414025640.

The previous prime is 28640026039. The next prime is 28640026057. The reversal of 28640026043 is 34062004682.

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 28640026043 - 2² = 28640026039 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28640025994 and 28640026012.

It is not an unprimeable number, because it can be changed into a prime (28640026033) 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 7 ways as a sum of consecutive naturals, for example, 518546 + ... + 571112.

It is an arithmetic number, because the mean of its divisors is an integer number (3608267520).

Almost surely, 2^28640026043 is an apocalyptic number.

28640026043 is a deficient number, since it is larger than the sum of its proper divisors (226114117).

28640026043 is a wasteful number, since it uses less digits than its factorization.

28640026043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56857.

The product of its (nonzero) digits is 55296, while the sum is 35.

The spelling of 28640026043 in words is "twenty-eight billion, six hundred forty million, twenty-six thousand, forty-three".