69779542349 has 32 divisors (see below), whose sum is σ = 80795320320. Its totient is φ = 59661748800.

The previous prime is 69779542331. The next prime is 69779542361. The reversal of 69779542349 is 94324597796.

It is a cyclic number.

It is not a de Polignac number, because 69779542349 - 2⁸ = 69779542093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69779542379) 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 in 31 ways as a sum of consecutive naturals, for example, 13106402 + ... + 13111724.

It is an arithmetic number, because the mean of its divisors is an integer number (2524853760).

Almost surely, 2^69779542349 is an apocalyptic number.

It is an amenable number.

69779542349 is a deficient number, since it is larger than the sum of its proper divisors (11015777971).

69779542349 is a wasteful number, since it uses less digits than its factorization.

69779542349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6441.

The product of its digits is 102876480, while the sum is 65.

The spelling of 69779542349 in words is "sixty-nine billion, seven hundred seventy-nine million, five hundred forty-two thousand, three hundred forty-nine".