29964820636 has 24 divisors (see below), whose sum is σ = 55560526560. Its totient is φ = 14091574272.

The previous prime is 29964820609. The next prime is 29964820657. The reversal of 29964820636 is 63602846992.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46720 + ... + 249223.

It is an arithmetic number, because the mean of its divisors is an integer number (2315021940).

Almost surely, 2^29964820636 is an apocalyptic number.

It is an amenable number.

29964820636 is a deficient number, since it is larger than the sum of its proper divisors (25595705924).

29964820636 is a wasteful number, since it uses less digits than its factorization.

29964820636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297453 (or 297451 counting only the distinct ones).

The product of its (nonzero) digits is 6718464, while the sum is 55.

The spelling of 29964820636 in words is "twenty-nine billion, nine hundred sixty-four million, eight hundred twenty thousand, six hundred thirty-six".