210929800000 has 84 divisors (see below), whose sum is σ = 523171788300. Its totient is φ = 84371840000.

The previous prime is 210929799917. The next prime is 210929800021. The reversal of 210929800000 is 8929012.

It can be written as a sum of positive squares in 6 ways, for example, as 158894715456 + 52035084544 = 398616^2 + 228112^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 327325 + ... + 727324.

It is an arithmetic number, because the mean of its divisors is an integer number (6228235575).

Almost surely, 2^210929800000 is an apocalyptic number.

210929800000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210929800000 is an abundant number, since it is smaller than the sum of its proper divisors (312241988300).

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

210929800000 is an frugal number, since it uses more digits than its factorization.

210929800000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1054686 (or 1054656 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 31.

The spelling of 210929800000 in words is "two hundred ten billion, nine hundred twenty-nine million, eight hundred thousand".