69485444649 has 16 divisors (see below), whose sum is σ = 108996776640. Its totient is φ = 43598710080.

The previous prime is 69485444629. The next prime is 69485444681. The reversal of 69485444649 is 94644458496.

69485444649 is a `hidden beast` number, since 6 + 9 + 4 + 8 + 544 + 46 + 49 = 666.

It is not a de Polignac number, because 69485444649 - 2⁵ = 69485444617 is a prime.

It is not an unprimeable number, because it can be changed into a prime (69485444629) 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 15 ways as a sum of consecutive naturals, for example, 75691747 + ... + 75692664.

It is an arithmetic number, because the mean of its divisors is an integer number (6812298540).

Almost surely, 2^69485444649 is an apocalyptic number.

It is an amenable number.

69485444649 is a deficient number, since it is larger than the sum of its proper divisors (39511331991).

69485444649 is a wasteful number, since it uses less digits than its factorization.

69485444649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151384437 (or 151384431 counting only the distinct ones).

The product of its digits is 119439360, while the sum is 63.

The spelling of 69485444649 in words is "sixty-nine billion, four hundred eighty-five million, four hundred forty-four thousand, six hundred forty-nine".