281996180968 has 32 divisors (see below), whose sum is σ = 541914572160. Its totient is φ = 137506983040.

The previous prime is 281996180929. The next prime is 281996180981. The reversal of 281996180968 is 869081699182.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1228846 + ... + 1440157.

It is an arithmetic number, because the mean of its divisors is an integer number (16934830380).

Almost surely, 2^281996180968 is an apocalyptic number.

It is an amenable number.

281996180968 is a deficient number, since it is larger than the sum of its proper divisors (259918391192).

281996180968 is a wasteful number, since it uses less digits than its factorization.

281996180968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2669337 (or 2669333 counting only the distinct ones).

The product of its (nonzero) digits is 26873856, while the sum is 67.

The spelling of 281996180968 in words is "two hundred eighty-one billion, nine hundred ninety-six million, one hundred eighty thousand, nine hundred sixty-eight".