424139123142 has 96 divisors (see below), whose sum is σ = 1078117447680. Its totient is φ = 117979424640.

The previous prime is 424139123113. The next prime is 424139123147. The reversal of 424139123142 is 241321931424.

424139123142 is a `hidden beast` number, since 4 + 2 + 413 + 9 + 1 + 231 + 4 + 2 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 424139123097 and 424139123106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (424139123147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2388813 + ... + 2560215.

It is an arithmetic number, because the mean of its divisors is an integer number (11230390080).

Almost surely, 2^424139123142 is an apocalyptic number.

424139123142 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 424139123142, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (539058723840).

424139123142 is an abundant number, since it is smaller than the sum of its proper divisors (653978324538).

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

424139123142 is a wasteful number, since it uses less digits than its factorization.

424139123142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171938 (or 171935 counting only the distinct ones).

The product of its digits is 41472, while the sum is 36.

The spelling of 424139123142 in words is "four hundred twenty-four billion, one hundred thirty-nine million, one hundred twenty-three thousand, one hundred forty-two".