42142666423 has 16 divisors (see below), whose sum is σ = 50000483232. Its totient is φ = 35014320000.

The previous prime is 42142666399. The next prime is 42142666457. The reversal of 42142666423 is 32466624124.

It is a de Polignac number, because none of the positive numbers 2^k-42142666423 is a prime.

It is a super-2 number, since 2×42142666423² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42142666723) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1444488 + ... + 1473373.

It is an arithmetic number, because the mean of its divisors is an integer number (3125030202).

Almost surely, 2^42142666423 is an apocalyptic number.

42142666423 is a deficient number, since it is larger than the sum of its proper divisors (7857816809).

42142666423 is a wasteful number, since it uses less digits than its factorization.

42142666423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2917986.

The product of its digits is 331776, while the sum is 40.

The spelling of 42142666423 in words is "forty-two billion, one hundred forty-two million, six hundred sixty-six thousand, four hundred twenty-three".