83281617072 has 60 divisors (see below), whose sum is σ = 241705198280. Its totient is φ = 27760537728.

The previous prime is 83281617059. The next prime is 83281617121. The reversal of 83281617072 is 27071618238.

83281617072 is a `hidden beast` number, since 8 + 3 + 28 + 1 + 617 + 0 + 7 + 2 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10706197 + ... + 10713972.

Almost surely, 2^83281617072 is an apocalyptic number.

It is an amenable number.

83281617072 is an abundant number, since it is smaller than the sum of its proper divisors (158423581208).

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

83281617072 is a wasteful number, since it uses less digits than its factorization.

83281617072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21420192 (or 21420174 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 45.

The spelling of 83281617072 in words is "eighty-three billion, two hundred eighty-one million, six hundred seventeen thousand, seventy-two".