29748329856 has 192 divisors, whose sum is σ = 98460379680. Its totient is φ = 8445026304.

The previous prime is 29748329843. The next prime is 29748329867. The reversal of 29748329856 is 65892384792.

29748329856 is a `hidden beast` number, since 297 + 4 + 8 + 3 + 298 + 56 = 666.

It is a tau number, because it is divible by the number of its divisors (192).

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

It is a junction number, because it is equal to n+sod(n) for n = 29748329793 and 29748329802.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1254300 + ... + 1277796.

Almost surely, 2^29748329856 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 29748329856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49230189840).

29748329856 is an abundant number, since it is smaller than the sum of its proper divisors (68712049824).

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

29748329856 is a wasteful number, since it uses less digits than its factorization.

29748329856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23681 (or 23666 counting only the distinct ones).

The product of its digits is 52254720, while the sum is 63.

The spelling of 29748329856 in words is "twenty-nine billion, seven hundred forty-eight million, three hundred twenty-nine thousand, eight hundred fifty-six".