1081689682 has 8 divisors (see below), whose sum is σ = 1660268016. Its totient is φ = 528267012.

The previous prime is 1081689673. The next prime is 1081689689. The reversal of 1081689682 is 2869861801.

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

It is a super-2 number, since 2×1081689682² = 2340105136290522248, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1081689689) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6288808 + ... + 6288979.

It is an arithmetic number, because the mean of its divisors is an integer number (207533502).

Almost surely, 2^1081689682 is an apocalyptic number.

1081689682 is a deficient number, since it is larger than the sum of its proper divisors (578578334).

1081689682 is a wasteful number, since it uses less digits than its factorization.

1081689682 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12577832.

The product of its (nonzero) digits is 331776, while the sum is 49.

The square root of 1081689682 is about 32889.0510960715. The cubic root of 1081689682 is about 1026.5203476520.

The spelling of 1081689682 in words is "one billion, eighty-one million, six hundred eighty-nine thousand, six hundred eighty-two".