71063162772 has 144 divisors (see below), whose sum is σ = 196522808832. Its totient is φ = 19924228800.

The previous prime is 71063162749. The next prime is 71063162773. The reversal of 71063162772 is 27726136017.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71063162773) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7364583 + ... + 7374225.

It is an arithmetic number, because the mean of its divisors is an integer number (1364741728).

Almost surely, 2^71063162772 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 71063162772, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98261404416).

71063162772 is an abundant number, since it is smaller than the sum of its proper divisors (125459646060).

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

71063162772 is a wasteful number, since it uses less digits than its factorization.

71063162772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9898 (or 9889 counting only the distinct ones).

The product of its (nonzero) digits is 148176, while the sum is 42.

Adding to 71063162772 its reverse (27726136017), we get a palindrome (98789298789).

The spelling of 71063162772 in words is "seventy-one billion, sixty-three million, one hundred sixty-two thousand, seven hundred seventy-two".