29974292168 has 12 divisors (see below), whose sum is σ = 56202715995. Its totient is φ = 14986901240.

The previous prime is 29974292143. The next prime is 29974292171. The reversal of 29974292168 is 86129247992.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in only one way, i.e., 14987146084 + 14987146084 = 122422^2 + 122422^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=122422.

It is a super-4 number, since 4×29974292168⁴ (a number of 43 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 459083 + ... + 520293.

Almost surely, 2^29974292168 is an apocalyptic number.

It is an amenable number.

29974292168 is a deficient number, since it is larger than the sum of its proper divisors (26228423827).

29974292168 is an frugal number, since it uses more digits than its factorization.

29974292168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122428 (or 61213 counting only the distinct ones).

The product of its digits is 7838208, while the sum is 59.

The spelling of 29974292168 in words is "twenty-nine billion, nine hundred seventy-four million, two hundred ninety-two thousand, one hundred sixty-eight".