71172030705442 has 32 divisors (see below), whose sum is σ = 112473674772480. Its totient is φ = 33684039896400.

The previous prime is 71172030705431. The next prime is 71172030705463. The reversal of 71172030705442 is 24450703027117.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 332393317 + ... + 332607367.

It is an arithmetic number, because the mean of its divisors is an integer number (3514802336640).

Almost surely, 2^{71172030705442} is an apocalyptic number.

71172030705442 is a deficient number, since it is larger than the sum of its proper divisors (41301644067038).

71172030705442 is a wasteful number, since it uses less digits than its factorization.

71172030705442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221566.

The product of its (nonzero) digits is 329280, while the sum is 43.

The spelling of 71172030705442 in words is "seventy-one trillion, one hundred seventy-two billion, thirty million, seven hundred five thousand, four hundred forty-two".