29581043412 has 24 divisors (see below), whose sum is σ = 69111747936. Its totient is φ = 9847588768.

The previous prime is 29581043407. The next prime is 29581043419. The reversal of 29581043412 is 21434018592.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29581043419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1585218 + ... + 1603769.

It is an arithmetic number, because the mean of its divisors is an integer number (2879656164).

Almost surely, 2^29581043412 is an apocalyptic number.

It is an amenable number.

29581043412 is an abundant number, since it is smaller than the sum of its proper divisors (39530704524).

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

29581043412 is a wasteful number, since it uses less digits than its factorization.

29581043412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3189767 (or 3189765 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 39.

The spelling of 29581043412 in words is "twenty-nine billion, five hundred eighty-one million, forty-three thousand, four hundred twelve".