28645835558 has 4 divisors (see below), whose sum is σ = 42968753340. Its totient is φ = 14322917778.

The previous prime is 28645835549. The next prime is 28645835587. The reversal of 28645835558 is 85553854682.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 85553854682 = 2 ⋅42776927341.

It is a super-3 number, since 3×28645835558³ (a number of 32 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 28645835497 and 28645835506.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7161458888 + ... + 7161458891.

It is an arithmetic number, because the mean of its divisors is an integer number (10742188335).

Almost surely, 2^28645835558 is an apocalyptic number.

28645835558 is a deficient number, since it is larger than the sum of its proper divisors (14322917782).

28645835558 is a wasteful number, since it uses less digits than its factorization.

28645835558 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14322917781.

The product of its digits is 46080000, while the sum is 59.

The spelling of 28645835558 in words is "twenty-eight billion, six hundred forty-five million, eight hundred thirty-five thousand, five hundred fifty-eight".