29742749602646 has 32 divisors (see below), whose sum is σ = 49299707455488. Its totient is φ = 13386037484160.

The previous prime is 29742749602609. The next prime is 29742749602649. The reversal of 29742749602646 is 64620694724792.

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 15 ways as a sum of consecutive naturals, for example, 2390171 + ... + 8074553.

It is an arithmetic number, because the mean of its divisors is an integer number (1540615857984).

Almost surely, 2^{29742749602646} is an apocalyptic number.

29742749602646 is a deficient number, since it is larger than the sum of its proper divisors (19556957852842).

29742749602646 is a wasteful number, since it uses less digits than its factorization.

29742749602646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5691116.

The product of its (nonzero) digits is 438939648, while the sum is 68.

The spelling of 29742749602646 in words is "twenty-nine trillion, seven hundred forty-two billion, seven hundred forty-nine million, six hundred two thousand, six hundred forty-six".