29125122036 has 12 divisors (see below), whose sum is σ = 67958618112. Its totient is φ = 9708374008.

The previous prime is 29125121999. The next prime is 29125122043. The reversal of 29125122036 is 63022152192.

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

It is a super-2 number, since 2×29125122036² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 29125121988 and 29125122006.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1213546740 + ... + 1213546763.

It is an arithmetic number, because the mean of its divisors is an integer number (5663218176).

Almost surely, 2^29125122036 is an apocalyptic number.

It is an amenable number.

29125122036 is an abundant number, since it is smaller than the sum of its proper divisors (38833496076).

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

29125122036 is a wasteful number, since it uses less digits than its factorization.

29125122036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2427093510 (or 2427093508 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 33.

The spelling of 29125122036 in words is "twenty-nine billion, one hundred twenty-five million, one hundred twenty-two thousand, thirty-six".