29194736128 has 40 divisors (see below), whose sum is σ = 58409883180. Its totient is φ = 14577991680.

The previous prime is 29194736101. The next prime is 29194736141. The reversal of 29194736128 is 82163749192.

It can be written as a sum of positive squares in 2 ways, for example, as 29128931584 + 65804544 = 170672^2 + 8112^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 352168 + ... + 427096.

Almost surely, 2^29194736128 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 29194736128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29204941590).

29194736128 is an abundant number, since it is smaller than the sum of its proper divisors (29215147052).

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

29194736128 is an frugal number, since it uses more digits than its factorization.

29194736128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75708 (or 75692 counting only the distinct ones).

The product of its digits is 1306368, while the sum is 52.

The spelling of 29194736128 in words is "twenty-nine billion, one hundred ninety-four million, seven hundred thirty-six thousand, one hundred twenty-eight".