71573024142 has 48 divisors (see below), whose sum is σ = 161007865200. Its totient is φ = 23829567552.

The previous prime is 71573024137. The next prime is 71573024203. The reversal of 71573024142 is 24142037517.

71573024142 is a `hidden beast` number, since 7 + 1 + 573 + 0 + 2 + 41 + 42 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 71573024097 and 71573024106.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 328234 + ... + 500882.

It is an arithmetic number, because the mean of its divisors is an integer number (3354330525).

Almost surely, 2^71573024142 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 71573024142, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80503932600).

71573024142 is an abundant number, since it is smaller than the sum of its proper divisors (89434841058).

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

71573024142 is a wasteful number, since it uses less digits than its factorization.

71573024142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173519 (or 173507 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 36.

The spelling of 71573024142 in words is "seventy-one billion, five hundred seventy-three million, twenty-four thousand, one hundred forty-two".