29479944672 has 72 divisors (see below), whose sum is σ = 84602798280. Its totient is φ = 9736485120.

The previous prime is 29479944653. The next prime is 29479944673. The reversal of 29479944672 is 27644997492.

29479944672 is a `hidden beast` number, since 2 + 9 + 479 + 94 + 4 + 6 + 72 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29479944673) 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, 438154 + ... + 500937.

It is an arithmetic number, because the mean of its divisors is an integer number (1175038865).

Almost surely, 2^29479944672 is an apocalyptic number.

It is an amenable number.

29479944672 is an abundant number, since it is smaller than the sum of its proper divisors (55122853608).

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

29479944672 is a wasteful number, since it uses less digits than its factorization.

29479944672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 939216 (or 939205 counting only the distinct ones).

The product of its digits is 54867456, while the sum is 63.

The spelling of 29479944672 in words is "twenty-nine billion, four hundred seventy-nine million, nine hundred forty-four thousand, six hundred seventy-two".