710330381721 has 27 divisors (see below), whose sum is σ = 1029922413429. Its totient is φ = 471765142872.

The previous prime is 710330381699. The next prime is 710330381791. The reversal of 710330381721 is 127183033017.

The square root of 710330381721 is 842811.

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

It is a de Polignac number, because none of the positive numbers 2^k-710330381721 is a prime.

It is not an unprimeable number, because it can be changed into a prime (710330381791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 1261687786 + ... + 1261688348.

Almost surely, 2^710330381721 is an apocalyptic number.

710330381721 is the 842811-st square number.

710330381721 is the 421406-th centered octagonal number.

It is an amenable number.

710330381721 is a deficient number, since it is larger than the sum of its proper divisors (319592031708).

710330381721 is an frugal number, since it uses more digits than its factorization.

710330381721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2130 (or 1065 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 36.

Multiplying 710330381721 by its sum of digits (36), we get a square (25571893741956 = 5056866²).

The spelling of 710330381721 in words is "seven hundred ten billion, three hundred thirty million, three hundred eighty-one thousand, seven hundred twenty-one".