209733294020 has 48 divisors (see below), whose sum is σ = 446388848640. Its totient is φ = 82767573504.

The previous prime is 209733293989. The next prime is 209733294083. The reversal of 209733294020 is 20492337902.

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, 224012 + ... + 685308.

It is an arithmetic number, because the mean of its divisors is an integer number (9299767680).

Almost surely, 2^209733294020 is an apocalyptic number.

209733294020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

209733294020 is an abundant number, since it is smaller than the sum of its proper divisors (236655554620).

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

209733294020 is a wasteful number, since it uses less digits than its factorization.

209733294020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 461612 (or 461610 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 41.

The spelling of 209733294020 in words is "two hundred nine billion, seven hundred thirty-three million, two hundred ninety-four thousand, twenty".