8742242422478 has 16 divisors (see below), whose sum is σ = 13152926169600. Its totient is φ = 4357937487456.

The previous prime is 8742242422457. The next prime is 8742242422483.

It is a happy number.

8742242422478 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3689075 + ... + 5576177.

It is an arithmetic number, because the mean of its divisors is an integer number (822057885600).

Almost surely, 2^{8742242422478} is an apocalyptic number.

8742242422478 is a deficient number, since it is larger than the sum of its proper divisors (4410683747122).

8742242422478 is a wasteful number, since it uses less digits than its factorization.

8742242422478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1894091.

The product of its digits is 25690112, while the sum is 56.

The spelling of 8742242422478 in words is "eight trillion, seven hundred forty-two billion, two hundred forty-two million, four hundred twenty-two thousand, four hundred seventy-eight".