71348820544 has 63 divisors (see below), whose sum is σ = 143147621883. Its totient is φ = 35284426752.

The previous prime is 71348820541. The next prime is 71348820551. The reversal of 71348820544 is 44502884317.

The square root of 71348820544 is 267112.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 3081582144 + 68267238400 = 55512^2 + 261280^2 .

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 71348820494 and 71348820503.

It is not an unprimeable number, because it can be changed into a prime (71348820541) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 369682912 + ... + 369683104.

Almost surely, 2^71348820544 is an apocalyptic number.

71348820544 is the 267112-nd square number.

It is an amenable number.

71348820544 is an abundant number, since it is smaller than the sum of its proper divisors (71798801339).

71348820544 is an frugal number, since it uses more digits than its factorization.

71348820544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 744 (or 368 counting only the distinct ones).

The product of its (nonzero) digits is 860160, while the sum is 46.

The spelling of 71348820544 in words is "seventy-one billion, three hundred forty-eight million, eight hundred twenty thousand, five hundred forty-four".