210939290920 has 32 divisors (see below), whose sum is σ = 480331645920. Its totient is φ = 83359140160.

The previous prime is 210939290899. The next prime is 210939290941. The reversal of 210939290920 is 29092939012.

It is an interprime number because it is at equal distance from previous prime (210939290899) and next prime (210939290941).

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 7 ways as a sum of consecutive naturals, for example, 31764646 + ... + 31771285.

It is an arithmetic number, because the mean of its divisors is an integer number (15010363935).

Almost surely, 2^210939290920 is an apocalyptic number.

210939290920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210939290920 is an abundant number, since it is smaller than the sum of its proper divisors (269392355000).

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

210939290920 is a wasteful number, since it uses less digits than its factorization.

210939290920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63536025 (or 63536021 counting only the distinct ones).

The product of its (nonzero) digits is 157464, while the sum is 46.

The spelling of 210939290920 in words is "two hundred ten billion, nine hundred thirty-nine million, two hundred ninety thousand, nine hundred twenty".