210797898490080 has 864 divisors, whose sum is σ = 846410892163200. Its totient is φ = 47592312514560.

The previous prime is 210797898490079. The next prime is 210797898490087. The reversal of 210797898490080 is 80094898797012.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a junction number, because it is equal to n+sod(n) for n = 210797898489990 and 210797898490008.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210797898490087) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 194783427 + ... + 195862653.

It is an arithmetic number, because the mean of its divisors is an integer number (979642236300).

Almost surely, 2^{210797898490080} is an apocalyptic number.

210797898490080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 210797898490080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (423205446081600).

210797898490080 is an abundant number, since it is smaller than the sum of its proper divisors (635612993673120).

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

210797898490080 is a wasteful number, since it uses less digits than its factorization.

210797898490080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1079348 (or 1079326 counting only the distinct ones).

The product of its (nonzero) digits is 146313216, while the sum is 72.

The spelling of 210797898490080 in words is "two hundred ten trillion, seven hundred ninety-seven billion, eight hundred ninety-eight million, four hundred ninety thousand, eighty".