29546220980 has 24 divisors (see below), whose sum is σ = 62139287112. Its totient is φ = 11800922112.

The previous prime is 29546220929. The next prime is 29546220989. The reversal of 29546220980 is 8902264592.

It can be written as a sum of positive squares in 4 ways, for example, as 194993296 + 29351227684 = 13964^2 + 171322^2 .

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29546220989) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1084097 + ... + 1111016.

It is an arithmetic number, because the mean of its divisors is an integer number (2589136963).

Almost surely, 2^29546220980 is an apocalyptic number.

29546220980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

29546220980 is an abundant number, since it is smaller than the sum of its proper divisors (32593066132).

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

29546220980 is a wasteful number, since it uses less digits than its factorization.

29546220980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2195795 (or 2195793 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 47.

The spelling of 29546220980 in words is "twenty-nine billion, five hundred forty-six million, two hundred twenty thousand, nine hundred eighty".