69434320897 has 4 divisors (see below), whose sum is σ = 69876577876. Its totient is φ = 68992063920.

The previous prime is 69434320843. The next prime is 69434320951. The reversal of 69434320897 is 79802343496.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (69434320843) and next prime (69434320951).

It can be written as a sum of positive squares in 2 ways, for example, as 9863667856 + 59570653041 = 99316^2 + 244071^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-69434320897 is a prime.

It is a super-2 number, since 2×69434320897² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (69434320807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 221128254 + ... + 221128567.

It is an arithmetic number, because the mean of its divisors is an integer number (17469144469).

Almost surely, 2^69434320897 is an apocalyptic number.

It is an amenable number.

69434320897 is a deficient number, since it is larger than the sum of its proper divisors (442256979).

69434320897 is a wasteful number, since it uses less digits than its factorization.

69434320897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 442256978.

The product of its (nonzero) digits is 7838208, while the sum is 55.

The spelling of 69434320897 in words is "sixty-nine billion, four hundred thirty-four million, three hundred twenty thousand, eight hundred ninety-seven".