603668978669 has 2 divisors, whose sum is σ = 603668978670. Its totient is φ = 603668978668.

The previous prime is 603668978609. The next prime is 603668978687. The reversal of 603668978669 is 966879866306.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 517159463044 + 86509515625 = 719138^2 + 294125^2 .

It is a cyclic number.

It is not a de Polignac number, because 603668978669 - 2²⁰ = 603667930093 is a prime.

It is a super-2 number, since 2×603668978669² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 603668978596 and 603668978605.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (603668978609) 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, 301834489334 + 301834489335.

It is an arithmetic number, because the mean of its divisors is an integer number (301834489335).

Almost surely, 2^603668978669 is an apocalyptic number.

It is an amenable number.

603668978669 is a deficient number, since it is larger than the sum of its proper divisors (1).

603668978669 is an equidigital number, since it uses as much as digits as its factorization.

603668978669 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 846526464, while the sum is 74.

The spelling of 603668978669 in words is "six hundred three billion, six hundred sixty-eight million, nine hundred seventy-eight thousand, six hundred sixty-nine".