29926693728 has 48 divisors (see below), whose sum is σ = 87286192560. Its totient is φ = 9975564288.

The previous prime is 29926693681. The next prime is 29926693739. The reversal of 29926693728 is 82739662992.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 17317825 + ... + 17319552.

It is an arithmetic number, because the mean of its divisors is an integer number (1818462345).

Almost surely, 2^29926693728 is an apocalyptic number.

It is an amenable number.

29926693728 is an abundant number, since it is smaller than the sum of its proper divisors (57359498832).

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

29926693728 is a wasteful number, since it uses less digits than its factorization.

29926693728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34637396 (or 34637382 counting only the distinct ones).

The product of its digits is 35271936, while the sum is 63.

The spelling of 29926693728 in words is "twenty-nine billion, nine hundred twenty-six million, six hundred ninety-three thousand, seven hundred twenty-eight".