29934842851920 has 80 divisors (see below), whose sum is σ = 94319291786112. Its totient is φ = 7851762055680.

The previous prime is 29934842851841. The next prime is 29934842851951. The reversal of 29934842851920 is 2915824843992.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1022350212 + ... + 1022379491.

Almost surely, 2^{29934842851920} is an apocalyptic number.

29934842851920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

29934842851920 is an abundant number, since it is smaller than the sum of its proper divisors (64384448934192).

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

29934842851920 is a wasteful number, since it uses less digits than its factorization.

29934842851920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2044729780 (or 2044729774 counting only the distinct ones).

The product of its (nonzero) digits is 89579520, while the sum is 66.

The spelling of 29934842851920 in words is "twenty-nine trillion, nine hundred thirty-four billion, eight hundred forty-two million, eight hundred fifty-one thousand, nine hundred twenty".