29444945688 has 128 divisors (see below), whose sum is σ = 83078136000. Its totient is φ = 9782176896.

The previous prime is 29444945683. The next prime is 29444945701. The reversal of 29444945688 is 88654944492.

29444945688 is a `hidden beast` number, since 2 + 94 + 4 + 494 + 56 + 8 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29444945683) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5543578 + ... + 5548886.

Almost surely, 2^29444945688 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 29444945688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41539068000).

29444945688 is an abundant number, since it is smaller than the sum of its proper divisors (53633190312).

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

29444945688 is an equidigital number, since it uses as much as digits as its factorization.

29444945688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5653 (or 5631 counting only the distinct ones).

The product of its digits is 79626240, while the sum is 63.

The spelling of 29444945688 in words is "twenty-nine billion, four hundred forty-four million, nine hundred forty-five thousand, six hundred eighty-eight".