69406669509139 has 2 divisors, whose sum is σ = 69406669509140. Its totient is φ = 69406669509138.

The previous prime is 69406669509043. The next prime is 69406669509169. The reversal of 69406669509139 is 93190596660496.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 69406669509139 - 2²⁵ = 69406635954707 is a prime.

It is not a weakly prime, because it can be changed into another prime (69406669509169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34703334754569 + 34703334754570.

It is an arithmetic number, because the mean of its divisors is an integer number (34703334754570).

Almost surely, 2^{69406669509139} is an apocalyptic number.

69406669509139 is a deficient number, since it is larger than the sum of its proper divisors (1).

69406669509139 is an equidigital number, since it uses as much as digits as its factorization.

69406669509139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 510183360, while the sum is 73.

The spelling of 69406669509139 in words is "sixty-nine trillion, four hundred six billion, six hundred sixty-nine million, five hundred nine thousand, one hundred thirty-nine".