69828647449 has 32 divisors (see below), whose sum is σ = 85277836800. Its totient is φ = 56351888640.

The previous prime is 69828647429. The next prime is 69828647461. The reversal of 69828647449 is 94474682896.

It is a cyclic number.

It is not a de Polignac number, because 69828647449 - 2⁷ = 69828647321 is a prime.

It is not an unprimeable number, because it can be changed into a prime (69828647429) 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 31 ways as a sum of consecutive naturals, for example, 763242 + ... + 849820.

It is an arithmetic number, because the mean of its divisors is an integer number (2664932400).

Almost surely, 2^69828647449 is an apocalyptic number.

It is an amenable number.

69828647449 is a deficient number, since it is larger than the sum of its proper divisors (15449189351).

69828647449 is a wasteful number, since it uses less digits than its factorization.

69828647449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86853.

The product of its digits is 167215104, while the sum is 67.

The spelling of 69828647449 in words is "sixty-nine billion, eight hundred twenty-eight million, six hundred forty-seven thousand, four hundred forty-nine".