707989499561 has 2 divisors, whose sum is σ = 707989499562. Its totient is φ = 707989499560.

The previous prime is 707989499507. The next prime is 707989499573. The reversal of 707989499561 is 165994989707.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 657103163161 + 50886336400 = 810619^2 + 225580^2 .

It is a cyclic number.

It is not a de Polignac number, because 707989499561 - 2¹⁴ = 707989483177 is a prime.

It is a super-4 number, since 4×707989499561⁴ (a number of 49 digits) contains 4444 as substring.

It is not a weakly prime, because it can be changed into another prime (707989495561) 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 as a sum of consecutive naturals, namely, 353994749780 + 353994749781.

It is an arithmetic number, because the mean of its divisors is an integer number (353994749781).

Almost surely, 2^707989499561 is an apocalyptic number.

It is an amenable number.

707989499561 is a deficient number, since it is larger than the sum of its proper divisors (1).

707989499561 is an equidigital number, since it uses as much as digits as its factorization.

707989499561 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 308629440, while the sum is 74.

The spelling of 707989499561 in words is "seven hundred seven billion, nine hundred eighty-nine million, four hundred ninety-nine thousand, five hundred sixty-one".