29869866669 has 8 divisors (see below), whose sum is σ = 39907603872. Its totient is φ = 19872686960.

The previous prime is 29869866601. The next prime is 29869866679. The reversal of 29869866669 is 96666896892.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 29869866669 - 2¹⁶ = 29869801133 is a prime.

It is a super-2 number, since 2×29869866669² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 29869866669.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29869866679) 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, 10137654 + ... + 10140599.

It is an arithmetic number, because the mean of its divisors is an integer number (4988450484).

Almost surely, 2^29869866669 is an apocalyptic number.

It is an amenable number.

29869866669 is a deficient number, since it is larger than the sum of its proper divisors (10037737203).

29869866669 is a wasteful number, since it uses less digits than its factorization.

29869866669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20278747.

The product of its digits is 725594112, while the sum is 75.

The spelling of 29869866669 in words is "twenty-nine billion, eight hundred sixty-nine million, eight hundred sixty-six thousand, six hundred sixty-nine".