123345720676 has 24 divisors (see below), whose sum is σ = 233867541600. Its totient is φ = 56695158912.

The previous prime is 123345720671. The next prime is 123345720679. The reversal of 123345720676 is 676027543321.

It is not an unprimeable number, because it can be changed into a prime (123345720671) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21089026 + ... + 21094873.

It is an arithmetic number, because the mean of its divisors is an integer number (9744480900).

Almost surely, 2^123345720676 is an apocalyptic number.

It is an amenable number.

123345720676 is a deficient number, since it is larger than the sum of its proper divisors (110521820924).

123345720676 is a wasteful number, since it uses less digits than its factorization.

123345720676 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42183963 (or 42183961 counting only the distinct ones).

The product of its (nonzero) digits is 1270080, while the sum is 46.

The spelling of 123345720676 in words is "one hundred twenty-three billion, three hundred forty-five million, seven hundred twenty thousand, six hundred seventy-six".