29686686746 has 8 divisors (see below), whose sum is σ = 44924101524. Its totient is φ = 14711986240.

The previous prime is 29686686727. The next prime is 29686686761. The reversal of 29686686746 is 64768668692.

It can be written as a sum of positive squares in 2 ways, for example, as 29571961225 + 114725521 = 171965^2 + 10711^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65678285 + ... + 65678736.

Almost surely, 2^29686686746 is an apocalyptic number.

29686686746 is a deficient number, since it is larger than the sum of its proper divisors (15237414778).

29686686746 is a wasteful number, since it uses less digits than its factorization.

29686686746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131357136.

The product of its digits is 250822656, while the sum is 68.

The spelling of 29686686746 in words is "twenty-nine billion, six hundred eighty-six million, six hundred eighty-six thousand, seven hundred forty-six".