7271392688704 has 21 divisors (see below), whose sum is σ = 14429212674537. Its totient is φ = 3635685558144.

The previous prime is 7271392688687. The next prime is 7271392688731. The reversal of 7271392688704 is 4078862931727.

The square root of 7271392688704 is 2696552.

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

It can be written as a sum of positive squares in only one way, i.e., 3232257431104 + 4039135257600 = 1797848^2 + 2009760^2 .

It is a Harshad number since it is a multiple of its sum of digits (64).

It is a Duffinian 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 2 ways as a sum of consecutive naturals, for example, 21403882 + ... + 21740950.

Almost surely, 2^{7271392688704} is an apocalyptic number.

7271392688704 is the 2696552-nd square number.

It is an amenable number.

7271392688704 is a deficient number, since it is larger than the sum of its proper divisors (7157819985833).

7271392688704 is an frugal number, since it uses more digits than its factorization.

7271392688704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 674150 (or 337071 counting only the distinct ones).

The product of its (nonzero) digits is 56899584, while the sum is 64.

Multiplying 7271392688704 by its sum of digits (64), we get a square (465369132077056 = 21572416²).

7271392688704 divided by its sum of digits (64) gives a square (113615510761 = 337069²).

The spelling of 7271392688704 in words is "seven trillion, two hundred seventy-one billion, three hundred ninety-two million, six hundred eighty-eight thousand, seven hundred four".