609140735969 has 2 divisors, whose sum is σ = 609140735970. Its totient is φ = 609140735968.

The previous prime is 609140735941. The next prime is 609140736019. The reversal of 609140735969 is 969537041906.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 516368713744 + 92772022225 = 718588^2 + 304585^2 .

It is a cyclic number.

It is not a de Polignac number, because 609140735969 - 2¹² = 609140731873 is a prime.

It is a super-2 number, since 2×609140735969² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (609140737969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 304570367984 + 304570367985.

It is an arithmetic number, because the mean of its divisors is an integer number (304570367985).

Almost surely, 2^609140735969 is an apocalyptic number.

It is an amenable number.

609140735969 is a deficient number, since it is larger than the sum of its proper divisors (1).

609140735969 is an equidigital number, since it uses as much as digits as its factorization.

609140735969 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11022480, while the sum is 59.

The spelling of 609140735969 in words is "six hundred nine billion, one hundred forty million, seven hundred thirty-five thousand, nine hundred sixty-nine".