29421828520 has 192 divisors, whose sum is σ = 79223287680. Its totient is φ = 9800953344.

The previous prime is 29421828487. The next prime is 29421828539. The reversal of 29421828520 is 2582812492.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 11113837 + ... + 11116483.

It is an arithmetic number, because the mean of its divisors is an integer number (412621290).

Almost surely, 2^29421828520 is an apocalyptic number.

29421828520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 29421828520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39611643840).

29421828520 is an abundant number, since it is smaller than the sum of its proper divisors (49801459160).

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

29421828520 is a wasteful number, since it uses less digits than its factorization.

29421828520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2832 (or 2821 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 43.

The spelling of 29421828520 in words is "twenty-nine billion, four hundred twenty-one million, eight hundred twenty-eight thousand, five hundred twenty".