29148080172 has 12 divisors (see below), whose sum is σ = 68012187096. Its totient is φ = 9716026720.

The previous prime is 29148080141. The next prime is 29148080173. The reversal of 29148080172 is 27108084192.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×29148080172² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (29148080173) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1214503329 + ... + 1214503352.

It is an arithmetic number, because the mean of its divisors is an integer number (5667682258).

Almost surely, 2^29148080172 is an apocalyptic number.

It is an amenable number.

29148080172 is an abundant number, since it is smaller than the sum of its proper divisors (38864106924).

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

29148080172 is a wasteful number, since it uses less digits than its factorization.

29148080172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2429006688 (or 2429006686 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 42.

The spelling of 29148080172 in words is "twenty-nine billion, one hundred forty-eight million, eighty thousand, one hundred seventy-two".