2281389206850 has 1344 divisors, whose sum is σ = 7574005232640. Its totient is φ = 506152281600.

The previous prime is 2281389206813. The next prime is 2281389206867. The reversal of 2281389206850 is 586029831822.

It is a happy number.

2281389206850 is a `hidden beast` number, since 2 + 2 + 8 + 1 + 389 + 206 + 8 + 50 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 671 ways as a sum of consecutive naturals, for example, 27486616909 + ... + 27486616991.

It is an arithmetic number, because the mean of its divisors is an integer number (5635420560).

Almost surely, 2^{2281389206850} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2281389206850, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3787002616320).

2281389206850 is an abundant number, since it is smaller than the sum of its proper divisors (5292616025790).

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

2281389206850 is a wasteful number, since it uses less digits than its factorization.

2281389206850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259 (or 239 counting only the distinct ones).

The product of its (nonzero) digits is 3317760, while the sum is 54.

The spelling of 2281389206850 in words is "two trillion, two hundred eighty-one billion, three hundred eighty-nine million, two hundred six thousand, eight hundred fifty".