29742749602645 has 8 divisors (see below), whose sum is σ = 35918632642104. Its totient is φ = 23642644269504.

The previous prime is 29742749602609. The next prime is 29742749602649. The reversal of 29742749602645 is 54620694724792.

It can be written as a sum of positive squares in 4 ways, for example, as 1147998673809 + 28594750928836 = 1071447^2 + 5347406^2 .

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 29742749602645 - 2⁹ = 29742749602133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29742749602649) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 18944425714 + ... + 18944427283.

It is an arithmetic number, because the mean of its divisors is an integer number (4489829080263).

Almost surely, 2^{29742749602645} is an apocalyptic number.

It is an amenable number.

29742749602645 is a deficient number, since it is larger than the sum of its proper divisors (6175883039459).

29742749602645 is a wasteful number, since it uses less digits than its factorization.

29742749602645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37888853159.

The product of its (nonzero) digits is 365783040, while the sum is 67.

The spelling of 29742749602645 in words is "twenty-nine trillion, seven hundred forty-two billion, seven hundred forty-nine million, six hundred two thousand, six hundred forty-five".