69531219697 has 2 divisors, whose sum is σ = 69531219698. Its totient is φ = 69531219696.

The previous prime is 69531219689. The next prime is 69531219827. The reversal of 69531219697 is 79691213596.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 53102132721 + 16429086976 = 230439^2 + 128176^2 .

It is a cyclic number.

It is not a de Polignac number, because 69531219697 - 2³ = 69531219689 is a prime.

It is not a weakly prime, because it can be changed into another prime (69531219097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34765609848 + 34765609849.

It is an arithmetic number, because the mean of its divisors is an integer number (34765609849).

Almost surely, 2^69531219697 is an apocalyptic number.

It is an amenable number.

69531219697 is a deficient number, since it is larger than the sum of its proper divisors (1).

69531219697 is an equidigital number, since it uses as much as digits as its factorization.

69531219697 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5511240, while the sum is 58.

The spelling of 69531219697 in words is "sixty-nine billion, five hundred thirty-one million, two hundred nineteen thousand, six hundred ninety-seven".