29689760857968 has 30 divisors (see below), whose sum is σ = 83090094623744. Its totient is φ = 9896586952608.

The previous prime is 29689760857903. The next prime is 29689760857979. The reversal of 29689760857968 is 86975806798692.

29689760857968 is a `hidden beast` number, since 29 + 6 + 8 + 9 + 7 + 6 + 0 + 8 + 579 + 6 + 8 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 103089447280 + ... + 103089447567.

Almost surely, 2^{29689760857968} is an apocalyptic number.

It is an amenable number.

29689760857968 is an abundant number, since it is smaller than the sum of its proper divisors (53400333765776).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

29689760857968 is a wasteful number, since it uses less digits than its factorization.

29689760857968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206178894861 (or 206178894852 counting only the distinct ones).

The product of its (nonzero) digits is 39504568320, while the sum is 90.

The spelling of 29689760857968 in words is "twenty-nine trillion, six hundred eighty-nine billion, seven hundred sixty million, eight hundred fifty-seven thousand, nine hundred sixty-eight".