1081686005 has 8 divisors (see below), whose sum is σ = 1310154912. Its totient is φ = 857261008.

The previous prime is 1081685987. The next prime is 1081686029. The reversal of 1081686005 is 5006861801.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1081686005 is a prime.

It is a super-2 number, since 2×1081686005² = 2340089226825720050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 1010387 + ... + 1011456.

It is an arithmetic number, because the mean of its divisors is an integer number (163769364).

Almost surely, 2^1081686005 is an apocalyptic number.

It is an amenable number.

1081686005 is a deficient number, since it is larger than the sum of its proper divisors (228468907).

1081686005 is a wasteful number, since it uses less digits than its factorization.

1081686005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2021955.

The product of its (nonzero) digits is 11520, while the sum is 35.

The square root of 1081686005 is about 32888.9951959618. The cubic root of 1081686005 is about 1026.5191844966.

The spelling of 1081686005 in words is "one billion, eighty-one million, six hundred eighty-six thousand, five".