69828493447 has 4 divisors (see below), whose sum is σ = 69905144736. Its totient is φ = 69751842160.

The previous prime is 69828493421. The next prime is 69828493459. The reversal of 69828493447 is 74439482896.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-69828493447 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69828493417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38324278 + ... + 38326099.

It is an arithmetic number, because the mean of its divisors is an integer number (17476286184).

Almost surely, 2^69828493447 is an apocalyptic number.

69828493447 is a deficient number, since it is larger than the sum of its proper divisors (76651289).

69828493447 is an equidigital number, since it uses as much as digits as its factorization.

69828493447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76651288.

The product of its digits is 83607552, while the sum is 64.

The spelling of 69828493447 in words is "sixty-nine billion, eight hundred twenty-eight million, four hundred ninety-three thousand, four hundred forty-seven".