71247718360 has 64 divisors (see below), whose sum is σ = 197301384000. Its totient is φ = 22548727296.

The previous prime is 71247718313. The next prime is 71247718379. The reversal of 71247718360 is 6381774217.

It is a self number, because there is not a number n which added to its sum of digits gives 71247718360.

It is a congruent number.

It is an unprimeable number.

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, 9783135 + ... + 9790414.

It is an arithmetic number, because the mean of its divisors is an integer number (3082834125).

Almost surely, 2^71247718360 is an apocalyptic number.

71247718360 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

71247718360 is an abundant number, since it is smaller than the sum of its proper divisors (126053665640).

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

71247718360 is a wasteful number, since it uses less digits than its factorization.

71247718360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19573580 (or 19573576 counting only the distinct ones).

The product of its (nonzero) digits is 395136, while the sum is 46.

The spelling of 71247718360 in words is "seventy-one billion, two hundred forty-seven million, seven hundred eighteen thousand, three hundred sixty".