29849433894 has 48 divisors (see below), whose sum is σ = 74477145600. Its totient is φ = 8463302640.

The previous prime is 29849433863. The next prime is 29849433899. The reversal of 29849433894 is 49833494892.

29849433894 is a `hidden beast` number, since 29 + 8 + 494 + 3 + 38 + 94 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29849433899) 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 23 ways as a sum of consecutive naturals, for example, 887694 + ... + 920705.

It is an arithmetic number, because the mean of its divisors is an integer number (1551607200).

Almost surely, 2^29849433894 is an apocalyptic number.

29849433894 is an abundant number, since it is smaller than the sum of its proper divisors (44627711706).

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

29849433894 is a wasteful number, since it uses less digits than its factorization.

29849433894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1808545 (or 1808542 counting only the distinct ones).

The product of its digits is 53747712, while the sum is 63.

The spelling of 29849433894 in words is "twenty-nine billion, eight hundred forty-nine million, four hundred thirty-three thousand, eight hundred ninety-four".