2173010518890 has 128 divisors (see below), whose sum is σ = 6138210378240. Its totient is φ = 545147366400.

The previous prime is 2173010518883. The next prime is 2173010518891. The reversal of 2173010518890 is 988150103712.

2173010518890 is a `hidden beast` number, since 2 + 1 + 7 + 30 + 10 + 518 + 8 + 90 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (2173010518891) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 10644075 + ... + 10846305.

It is an arithmetic number, because the mean of its divisors is an integer number (47954768580).

Almost surely, 2^{2173010518890} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2173010518890, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3069105189120).

2173010518890 is an abundant number, since it is smaller than the sum of its proper divisors (3965199859350).

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

2173010518890 is a wasteful number, since it uses less digits than its factorization.

2173010518890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204605 (or 204599 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 45.

The spelling of 2173010518890 in words is "two trillion, one hundred seventy-three billion, ten million, five hundred eighteen thousand, eight hundred ninety".