708821073721 has 16 divisors (see below), whose sum is σ = 717638315328. Its totient is φ = 700059110400.

The previous prime is 708821073707. The next prime is 708821073767. The reversal of 708821073721 is 127370128807.

It is a cyclic number.

It is not a de Polignac number, because 708821073721 - 2⁷ = 708821073593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (708821073781) by changing a digit.

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, 59126490 + ... + 59138476.

It is an arithmetic number, because the mean of its divisors is an integer number (44852394708).

Almost surely, 2^708821073721 is an apocalyptic number.

It is an amenable number.

708821073721 is a deficient number, since it is larger than the sum of its proper divisors (8817241607).

708821073721 is a wasteful number, since it uses less digits than its factorization.

708821073721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14232.

The product of its (nonzero) digits is 263424, while the sum is 46.

The spelling of 708821073721 in words is "seven hundred eight billion, eight hundred twenty-one million, seventy-three thousand, seven hundred twenty-one".