71324644735136 has 96 divisors (see below), whose sum is σ = 156359841878016. Its totient is φ = 31804151040000.

The previous prime is 71324644735133. The next prime is 71324644735147. The reversal of 71324644735136 is 63153744642317.

It is not an unprimeable number, because it can be changed into a prime (71324644735133) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 3149201 + ... + 12351791.

It is an arithmetic number, because the mean of its divisors is an integer number (1628748352896).

Almost surely, 2^{71324644735136} 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 71324644735136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78179920939008).

71324644735136 is an abundant number, since it is smaller than the sum of its proper divisors (85035197142880).

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

71324644735136 is a wasteful number, since it uses less digits than its factorization.

71324644735136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9203246 (or 9203238 counting only the distinct ones).

The product of its digits is 30481920, while the sum is 56.

The spelling of 71324644735136 in words is "seventy-one trillion, three hundred twenty-four billion, six hundred forty-four million, seven hundred thirty-five thousand, one hundred thirty-six".