1617681068 has 6 divisors (see below), whose sum is σ = 2830941876. Its totient is φ = 808840532.

The previous prime is 1617681061. The next prime is 1617681073. The reversal of 1617681068 is 8601867161.

It is not an unprimeable number, because it can be changed into a prime (1617681061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202210130 + ... + 202210137.

It is an arithmetic number, because the mean of its divisors is an integer number (471823646).

Almost surely, 2^1617681068 is an apocalyptic number.

It is an amenable number.

1617681068 is a deficient number, since it is larger than the sum of its proper divisors (1213260808).

1617681068 is a wasteful number, since it uses less digits than its factorization.

1617681068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404420271 (or 404420269 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 44.

The square root of 1617681068 is about 40220.4061143097. The cubic root of 1617681068 is about 1173.8996351296.

The spelling of 1617681068 in words is "one billion, six hundred seventeen million, six hundred eighty-one thousand, sixty-eight".