29897676160 has 128 divisors (see below), whose sum is σ = 78136047360. Its totient is φ = 10848983040.

The previous prime is 29897676139. The next prime is 29897676169. The reversal of 29897676160 is 6167679892.

It is a tau number, because it is divible by the number of its divisors (128).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29897676169) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3536899 + ... + 3545341.

It is an arithmetic number, because the mean of its divisors is an integer number (610437870).

Almost surely, 2^29897676160 is an apocalyptic number.

29897676160 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 29897676160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39068023680).

29897676160 is an abundant number, since it is smaller than the sum of its proper divisors (48238371200).

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

29897676160 is a wasteful number, since it uses less digits than its factorization.

29897676160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8976 (or 8964 counting only the distinct ones).

The product of its (nonzero) digits is 13716864, while the sum is 61.

The spelling of 29897676160 in words is "twenty-nine billion, eight hundred ninety-seven million, six hundred seventy-six thousand, one hundred sixty".