71719126050 has 144 divisors (see below), whose sum is σ = 210542149440. Its totient is φ = 16048982400.

The previous prime is 71719126043. The next prime is 71719126051. The reversal of 71719126050 is 5062191717.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (71719126051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 83971 + ... + 387929.

It is an arithmetic number, because the mean of its divisors is an integer number (1462098260).

Almost surely, 2^71719126050 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 71719126050, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105271074720).

71719126050 is an abundant number, since it is smaller than the sum of its proper divisors (138823023390).

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

71719126050 is a wasteful number, since it uses less digits than its factorization.

71719126050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304009 (or 303993 counting only the distinct ones).

The product of its (nonzero) digits is 26460, while the sum is 39.

The spelling of 71719126050 in words is "seventy-one billion, seven hundred nineteen million, one hundred twenty-six thousand, fifty".