405142005044142 has 48 divisors (see below), whose sum is σ = 887582394972000. Its totient is φ = 133545809120256.

The previous prime is 405142005044093. The next prime is 405142005044143. The reversal of 405142005044142 is 241440500241504.

405142005044142 is a `hidden beast` number, since 4 + 0 + 5 + 1 + 4 + 2 + 0 + 0 + 504 + 4 + 142 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 405142005044097 and 405142005044106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (405142005044143) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 92729767 + ... + 97000482.

It is an arithmetic number, because the mean of its divisors is an integer number (18491299895250).

Almost surely, 2^{405142005044142} is an apocalyptic number.

405142005044142 is an abundant number, since it is smaller than the sum of its proper divisors (482440389927858).

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

405142005044142 is a wasteful number, since it uses less digits than its factorization.

405142005044142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189731577 (or 189731574 counting only the distinct ones).

The product of its (nonzero) digits is 102400, while the sum is 36.

Adding to 405142005044142 its reverse (241440500241504), we get a palindrome (646582505285646).

The spelling of 405142005044142 in words is "four hundred five trillion, one hundred forty-two billion, five million, forty-four thousand, one hundred forty-two".