8782642123 has 2 divisors, whose sum is σ = 8782642124. Its totient is φ = 8782642122.

The previous prime is 8782642117. The next prime is 8782642133. The reversal of 8782642123 is 3212462878.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8782642123 - 2⁵ = 8782642091 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8782642123.

It is not a weakly prime, because it can be changed into another prime (8782642133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4391321061 + 4391321062.

It is an arithmetic number, because the mean of its divisors is an integer number (4391321062).

Almost surely, 2^8782642123 is an apocalyptic number.

8782642123 is a deficient number, since it is larger than the sum of its proper divisors (1).

8782642123 is an equidigital number, since it uses as much as digits as its factorization.

8782642123 is an evil number, because the sum of its binary digits is even.

The product of its digits is 258048, while the sum is 43.

The square root of 8782642123 is about 93715.7517336333. The cubic root of 8782642123 is about 2063.2018986909.

The spelling of 8782642123 in words is "eight billion, seven hundred eighty-two million, six hundred forty-two thousand, one hundred twenty-three".