29489171712 has 576 divisors, whose sum is σ = 106808647680. Its totient is φ = 6974668800.

The previous prime is 29489171689. The next prime is 29489171729. The reversal of 29489171712 is 21717198492.

It is a super-2 number, since 2×29489171712² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 68420137 + ... + 68420567.

It is an arithmetic number, because the mean of its divisors is an integer number (185431680).

Almost surely, 2^29489171712 is an apocalyptic number.

29489171712 is a gapful number since it is divisible by the number (22) 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 29489171712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53404323840).

29489171712 is an abundant number, since it is smaller than the sum of its proper divisors (77319475968).

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

29489171712 is a wasteful number, since it uses less digits than its factorization.

29489171712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 570 (or 556 counting only the distinct ones).

The product of its digits is 508032, while the sum is 51.

The spelling of 29489171712 in words is "twenty-nine billion, four hundred eighty-nine million, one hundred seventy-one thousand, seven hundred twelve".