1067068681 has 4 divisors (see below), whose sum is σ = 1219507072. Its totient is φ = 914630292.

The previous prime is 1067068637. The next prime is 1067068687. The reversal of 1067068681 is 1868607601.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1067068681 - 2¹⁹ = 1066544393 is a prime.

It is a super-2 number, since 2×1067068681² = 2277271139942159522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1067068687) 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, 76219185 + ... + 76219198.

It is an arithmetic number, because the mean of its divisors is an integer number (304876768).

Almost surely, 2^1067068681 is an apocalyptic number.

It is an amenable number.

1067068681 is a deficient number, since it is larger than the sum of its proper divisors (152438391).

1067068681 is an equidigital number, since it uses as much as digits as its factorization.

1067068681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152438390.

The product of its (nonzero) digits is 96768, while the sum is 43.

The square root of 1067068681 is about 32666.0172197346. The cubic root of 1067068681 is about 1021.8742551420.

The spelling of 1067068681 in words is "one billion, sixty-seven million, sixty-eight thousand, six hundred eighty-one".