281966094630 has 256 divisors, whose sum is σ = 869181235200. Its totient is φ = 64326960000.

The previous prime is 281966094589. The next prime is 281966094643. The reversal of 281966094630 is 36490669182.

281966094630 is a `hidden beast` number, since 28 + 1 + 9 + 6 + 609 + 4 + 6 + 3 + 0 = 666.

It is a super-2 number, since 2×281966094630² (a number of 24 digits) contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 8504385 + ... + 8537475.

It is an arithmetic number, because the mean of its divisors is an integer number (3395239200).

Almost surely, 2^281966094630 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 281966094630, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (434590617600).

281966094630 is an abundant number, since it is smaller than the sum of its proper divisors (587215140570).

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

281966094630 is a wasteful number, since it uses less digits than its factorization.

281966094630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33288 (or 33282 counting only the distinct ones).

The product of its (nonzero) digits is 3359232, while the sum is 54.

The spelling of 281966094630 in words is "two hundred eighty-one billion, nine hundred sixty-six million, ninety-four thousand, six hundred thirty".