29149431247220 has 48 divisors (see below), whose sum is σ = 61459406418816. Its totient is φ = 11612994000000.

The previous prime is 29149431247193. The next prime is 29149431247231. The reversal of 29149431247220 is 2274213494192.

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 15 ways as a sum of consecutive naturals, for example, 265759190 + ... + 265868850.

It is an arithmetic number, because the mean of its divisors is an integer number (1280404300392).

Almost surely, 2^{29149431247220} is an apocalyptic number.

29149431247220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

29149431247220 is an abundant number, since it is smaller than the sum of its proper divisors (32309975171596).

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

29149431247220 is a wasteful number, since it uses less digits than its factorization.

29149431247220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162872 (or 162870 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 50.

The spelling of 29149431247220 in words is "twenty-nine trillion, one hundred forty-nine billion, four hundred thirty-one million, two hundred forty-seven thousand, two hundred twenty".