281054042816 has 28 divisors (see below), whose sum is σ = 581965167792. Its totient is φ = 134417150208.

The previous prime is 281054042723. The next prime is 281054042837. The reversal of 281054042816 is 618240450182.

It is a super-2 number, since 2×281054042816² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 95465255 + ... + 95468198.

Almost surely, 2^281054042816 is an apocalyptic number.

It is an amenable number.

281054042816 is an abundant number, since it is smaller than the sum of its proper divisors (300911124976).

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

281054042816 is a wasteful number, since it uses less digits than its factorization.

281054042816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190933488 (or 190933478 counting only the distinct ones).

The product of its (nonzero) digits is 122880, while the sum is 41.

Adding to 281054042816 its reverse (618240450182), we get a palindrome (899294492998).

The spelling of 281054042816 in words is "two hundred eighty-one billion, fifty-four million, forty-two thousand, eight hundred sixteen".