71961241524 has 48 divisors (see below), whose sum is σ = 170708032320. Its totient is φ = 23587511040.

The previous prime is 71961241433. The next prime is 71961241529. The reversal of 71961241524 is 42514216917.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71961241529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3270592 + ... + 3292520.

It is an arithmetic number, because the mean of its divisors is an integer number (3556417340).

Almost surely, 2^71961241524 is an apocalyptic number.

It is an amenable number.

71961241524 is an abundant number, since it is smaller than the sum of its proper divisors (98746790796).

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

71961241524 is a wasteful number, since it uses less digits than its factorization.

71961241524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26480 (or 26478 counting only the distinct ones).

The product of its digits is 120960, while the sum is 42.

The spelling of 71961241524 in words is "seventy-one billion, nine hundred sixty-one million, two hundred forty-one thousand, five hundred twenty-four".