69430309687 has 2 divisors, whose sum is σ = 69430309688. Its totient is φ = 69430309686.

The previous prime is 69430309681. The next prime is 69430309721. The reversal of 69430309687 is 78690303496.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-69430309687 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (69430309681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34715154843 + 34715154844.

It is an arithmetic number, because the mean of its divisors is an integer number (34715154844).

Almost surely, 2^69430309687 is an apocalyptic number.

69430309687 is a deficient number, since it is larger than the sum of its proper divisors (1).

69430309687 is an equidigital number, since it uses as much as digits as its factorization.

69430309687 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5878656, while the sum is 55.

The spelling of 69430309687 in words is "sixty-nine billion, four hundred thirty million, three hundred nine thousand, six hundred eighty-seven".