704320991081 has 2 divisors, whose sum is σ = 704320991082. Its totient is φ = 704320991080.

The previous prime is 704320991069. The next prime is 704320991113. The reversal of 704320991081 is 180199023407.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 648959136400 + 55361854681 = 805580^2 + 235291^2 .

It is a cyclic number.

It is not a de Polignac number, because 704320991081 - 2¹⁰ = 704320990057 is a prime.

It is a super-2 number, since 2×704320991081² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (704320991051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 352160495540 + 352160495541.

It is an arithmetic number, because the mean of its divisors is an integer number (352160495541).

Almost surely, 2^704320991081 is an apocalyptic number.

It is an amenable number.

704320991081 is a deficient number, since it is larger than the sum of its proper divisors (1).

704320991081 is an equidigital number, since it uses as much as digits as its factorization.

704320991081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108864, while the sum is 44.

The spelling of 704320991081 in words is "seven hundred four billion, three hundred twenty million, nine hundred ninety-one thousand, eighty-one".