213488889565080 has 128 divisors (see below), whose sum is σ = 643804800073920. Its totient is φ = 56633665781760.

The previous prime is 213488889565057. The next prime is 213488889565111. The reversal of 213488889565080 is 80565988884312.

It is a Cunningham number, because it is equal to 14611259²-1.

It is a super-2 number, since 2×213488889565080² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 213488889564993 and 213488889565011.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 876553720 + ... + 876797240.

Almost surely, 2^{213488889565080} is an apocalyptic number.

213488889565080 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 213488889565080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (321902400036960).

213488889565080 is an abundant number, since it is smaller than the sum of its proper divisors (430315910508840).

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

213488889565080 is a wasteful number, since it uses less digits than its factorization.

213488889565080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281581 (or 281577 counting only the distinct ones).

The product of its (nonzero) digits is 1061683200, while the sum is 75.

The spelling of 213488889565080 in words is "two hundred thirteen trillion, four hundred eighty-eight billion, eight hundred eighty-nine million, five hundred sixty-five thousand, eighty".