29784881052 has 36 divisors (see below), whose sum is σ = 75335701896. Its totient is φ = 9922209120.

The previous prime is 29784881051. The next prime is 29784881089. The reversal of 29784881052 is 25018848792.

It is a tau number, because it is divible by the number of its divisors (36).

It is a self number, because there is not a number n which added to its sum of digits gives 29784881052.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29784881051) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 193774 + ... + 311637.

It is an arithmetic number, because the mean of its divisors is an integer number (2092658386).

Almost surely, 2^29784881052 is an apocalyptic number.

It is an amenable number.

29784881052 is an abundant number, since it is smaller than the sum of its proper divisors (45550820844).

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

29784881052 is a wasteful number, since it uses less digits than its factorization.

29784881052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 507058 (or 507053 counting only the distinct ones).

The product of its (nonzero) digits is 2580480, while the sum is 54.

The spelling of 29784881052 in words is "twenty-nine billion, seven hundred eighty-four million, eight hundred eighty-one thousand, fifty-two".