123422657742 has 32 divisors (see below), whose sum is σ = 274496981760. Its totient is φ = 41107224600.

The previous prime is 123422657719. The next prime is 123422657789. The reversal of 123422657742 is 247756224321.

123422657742 is a `hidden beast` number, since 1 + 2 + 34 + 2 + 2 + 6 + 577 + 42 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 868384 + ... + 1000467.

It is an arithmetic number, because the mean of its divisors is an integer number (8578030680).

Almost surely, 2^123422657742 is an apocalyptic number.

123422657742 is an abundant number, since it is smaller than the sum of its proper divisors (151074324018).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123422657742 is a wasteful number, since it uses less digits than its factorization.

123422657742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1870085 (or 1870079 counting only the distinct ones).

The product of its digits is 1128960, while the sum is 45.

The spelling of 123422657742 in words is "one hundred twenty-three billion, four hundred twenty-two million, six hundred fifty-seven thousand, seven hundred forty-two".