71578298922032 has 160 divisors (see below), whose sum is σ = 167467109990400. Its totient is φ = 28985228826624.

The previous prime is 71578298922001. The next prime is 71578298922043. The reversal of 71578298922032 is 23022989287517.

It is a self number, because there is not a number n which added to its sum of digits gives 71578298922032.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1792619444 + ... + 1792659372.

It is an arithmetic number, because the mean of its divisors is an integer number (1046669437440).

Almost surely, 2^{71578298922032} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 71578298922032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83733554995200).

71578298922032 is an abundant number, since it is smaller than the sum of its proper divisors (95888811068368).

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

71578298922032 is a wasteful number, since it uses less digits than its factorization.

71578298922032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51763 (or 51757 counting only the distinct ones).

The product of its (nonzero) digits is 60963840, while the sum is 65.

The spelling of 71578298922032 in words is "seventy-one trillion, five hundred seventy-eight billion, two hundred ninety-eight million, nine hundred twenty-two thousand, thirty-two".