29997922688857 has 8 divisors (see below), whose sum is σ = 31624440118272. Its totient is φ = 28412582916000.

The previous prime is 29997922688819. The next prime is 29997922688917. The reversal of 29997922688857 is 75888622979992.

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 29997922688857 - 2⁷ = 29997922688729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29997922688557) 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, 10294412644 + ... + 10294415557.

It is an arithmetic number, because the mean of its divisors is an integer number (3953055014784).

Almost surely, 2^{29997922688857} is an apocalyptic number.

It is an amenable number.

29997922688857 is a deficient number, since it is larger than the sum of its proper divisors (1626517429415).

29997922688857 is a wasteful number, since it uses less digits than its factorization.

29997922688857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20588828279.

The product of its digits is 39504568320, while the sum is 91.

The spelling of 29997922688857 in words is "twenty-nine trillion, nine hundred ninety-seven billion, nine hundred twenty-two million, six hundred eighty-eight thousand, eight hundred fifty-seven".