29047655420 has 96 divisors (see below), whose sum is σ = 72914688000. Its totient is φ = 9504025344.

The previous prime is 29047655419. The next prime is 29047655431. The reversal of 29047655420 is 2455674092.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1403306 + ... + 1423854.

It is an arithmetic number, because the mean of its divisors is an integer number (759528000).

Almost surely, 2^29047655420 is an apocalyptic number.

29047655420 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 29047655420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36457344000).

29047655420 is an abundant number, since it is smaller than the sum of its proper divisors (43867032580).

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

29047655420 is a wasteful number, since it uses less digits than its factorization.

29047655420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21027 (or 21025 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 44.

The spelling of 29047655420 in words is "twenty-nine billion, forty-seven million, six hundred fifty-five thousand, four hundred twenty".