38429665569 has 8 divisors (see below), whose sum is σ = 56932837920. Its totient is φ = 25619777028.

The previous prime is 38429665541. The next prime is 38429665591. The reversal of 38429665569 is 96556692483.

38429665569 is a `hidden beast` number, since 3 + 8 + 4 + 2 + 9 + 6 + 65 + 569 = 666.

It is not a de Polignac number, because 38429665569 - 2⁷ = 38429665441 is a prime.

It is a super-2 number, since 2×38429665569² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (38429665369) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 711660447 + ... + 711660500.

It is an arithmetic number, because the mean of its divisors is an integer number (7116604740).

Almost surely, 2^38429665569 is an apocalyptic number.

It is an amenable number.

38429665569 is a deficient number, since it is larger than the sum of its proper divisors (18503172351).

38429665569 is a wasteful number, since it uses less digits than its factorization.

38429665569 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1423320956 (or 1423320950 counting only the distinct ones).

The product of its digits is 83980800, while the sum is 63.

The spelling of 38429665569 in words is "thirty-eight billion, four hundred twenty-nine million, six hundred sixty-five thousand, five hundred sixty-nine".