29811530480 has 160 divisors (see below), whose sum is σ = 79341975360. Its totient is φ = 10344775680.

The previous prime is 29811530479. The next prime is 29811530509. The reversal of 29811530480 is 8403511892.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 940490 + ... + 971670.

It is an arithmetic number, because the mean of its divisors is an integer number (495887346).

Almost surely, 2^29811530480 is an apocalyptic number.

29811530480 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 29811530480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39670987680).

29811530480 is an abundant number, since it is smaller than the sum of its proper divisors (49530444880).

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

29811530480 is a wasteful number, since it uses less digits than its factorization.

29811530480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31267 (or 31261 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 41.

The spelling of 29811530480 in words is "twenty-nine billion, eight hundred eleven million, five hundred thirty thousand, four hundred eighty".