29368139569 has 4 divisors (see below), whose sum is σ = 29384180800. Its totient is φ = 29352098340.

The previous prime is 29368139503. The next prime is 29368139623. The reversal of 29368139569 is 96593186392.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 29368139569 - 2⁹ = 29368139057 is a prime.

It is a super-2 number, since 2×29368139569² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29368119569) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8017869 + ... + 8021530.

It is an arithmetic number, because the mean of its divisors is an integer number (7346045200).

Almost surely, 2^29368139569 is an apocalyptic number.

It is an amenable number.

29368139569 is a deficient number, since it is larger than the sum of its proper divisors (16041231).

29368139569 is a wasteful number, since it uses less digits than its factorization.

29368139569 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16041230.

The product of its digits is 18895680, while the sum is 61.

The spelling of 29368139569 in words is "twenty-nine billion, three hundred sixty-eight million, one hundred thirty-nine thousand, five hundred sixty-nine".