8457695123 has 2 divisors, whose sum is σ = 8457695124. Its totient is φ = 8457695122.

The previous prime is 8457695117. The next prime is 8457695149. The reversal of 8457695123 is 3215967548.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8457695123 - 2⁴ = 8457695107 is a prime.

It is not a weakly prime, because it can be changed into another prime (8457695153) 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 as a sum of consecutive naturals, namely, 4228847561 + 4228847562.

It is an arithmetic number, because the mean of its divisors is an integer number (4228847562).

Almost surely, 2^8457695123 is an apocalyptic number.

8457695123 is a deficient number, since it is larger than the sum of its proper divisors (1).

8457695123 is an equidigital number, since it uses as much as digits as its factorization.

8457695123 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1814400, while the sum is 50.

The square root of 8457695123 is about 91965.7279805907. The cubic root of 8457695123 is about 2037.4361552654.

The spelling of 8457695123 in words is "eight billion, four hundred fifty-seven million, six hundred ninety-five thousand, one hundred twenty-three".