709474179977 has 2 divisors, whose sum is σ = 709474179978. Its totient is φ = 709474179976.

The previous prime is 709474179923. The next prime is 709474180081. The reversal of 709474179977 is 779971474907.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 567146054281 + 142328125696 = 753091^2 + 377264^2 .

It is a cyclic number.

It is not a de Polignac number, because 709474179977 - 2³⁶ = 640754703241 is a prime.

It is a super-2 number, since 2×709474179977² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 709474179977.

It is not a weakly prime, because it can be changed into another prime (709474176977) 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, 354737089988 + 354737089989.

It is an arithmetic number, because the mean of its divisors is an integer number (354737089989).

Almost surely, 2^709474179977 is an apocalyptic number.

It is an amenable number.

709474179977 is a deficient number, since it is larger than the sum of its proper divisors (1).

709474179977 is an equidigital number, since it uses as much as digits as its factorization.

709474179977 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 196036848, while the sum is 71.

The spelling of 709474179977 in words is "seven hundred nine billion, four hundred seventy-four million, one hundred seventy-nine thousand, nine hundred seventy-seven".