281997802362 has 192 divisors, whose sum is σ = 639328671360. Its totient is φ = 82614712320.

The previous prime is 281997802319. The next prime is 281997802367. The reversal of 281997802362 is 263208799182.

It is a happy number.

It is a super-2 number, since 2×281997802362² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is not an unprimeable number, because it can be changed into a prime (281997802367) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 295904878 + ... + 295905830.

It is an arithmetic number, because the mean of its divisors is an integer number (3329836830).

Almost surely, 2^281997802362 is an apocalyptic number.

281997802362 is an abundant number, since it is smaller than the sum of its proper divisors (357330868998).

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

281997802362 is a wasteful number, since it uses less digits than its factorization.

281997802362 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1149 (or 1118 counting only the distinct ones).

The product of its (nonzero) digits is 5225472, while the sum is 57.

The spelling of 281997802362 in words is "two hundred eighty-one billion, nine hundred ninety-seven million, eight hundred two thousand, three hundred sixty-two".