71745980252 has 24 divisors (see below), whose sum is σ = 126081854976. Its totient is φ = 35722700208.

The previous prime is 71745980233. The next prime is 71745980263. The reversal of 71745980252 is 25208954717.

It is a super-3 number, since 3×71745980252³ (a number of 34 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 71745980252.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 3025313 + ... + 3048935.

It is an arithmetic number, because the mean of its divisors is an integer number (5253410624).

Almost surely, 2^71745980252 is an apocalyptic number.

It is an amenable number.

71745980252 is a deficient number, since it is larger than the sum of its proper divisors (54335874724).

71745980252 is a wasteful number, since it uses less digits than its factorization.

71745980252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26777 (or 26775 counting only the distinct ones).

The product of its (nonzero) digits is 1411200, while the sum is 50.

The spelling of 71745980252 in words is "seventy-one billion, seven hundred forty-five million, nine hundred eighty thousand, two hundred fifty-two".