28610622827 has 4 divisors (see below), whose sum is σ = 29533546176. Its totient is φ = 27687699480.

The previous prime is 28610622823. The next prime is 28610622853. The reversal of 28610622827 is 72822601682.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 72822601682 = 2 ⋅36411300841.

It is a cyclic number.

It is not a de Polignac number, because 28610622827 - 2² = 28610622823 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28610622823) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 461461628 + ... + 461461689.

It is an arithmetic number, because the mean of its divisors is an integer number (7383386544).

Almost surely, 2^28610622827 is an apocalyptic number.

28610622827 is a deficient number, since it is larger than the sum of its proper divisors (922923349).

28610622827 is an equidigital number, since it uses as much as digits as its factorization.

28610622827 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 922923348.

The product of its (nonzero) digits is 258048, while the sum is 44.

The spelling of 28610622827 in words is "twenty-eight billion, six hundred ten million, six hundred twenty-two thousand, eight hundred twenty-seven".