1068451885 has 4 divisors (see below), whose sum is σ = 1282142268. Its totient is φ = 854761504.

The previous prime is 1068451877. The next prime is 1068451897. The reversal of 1068451885 is 5881548601.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 702992196 + 365459689 = 26514^2 + 19117^2 .

It is a cyclic number.

It is not a de Polignac number, because 1068451885 - 2³ = 1068451877 is a prime.

It is a super-2 number, since 2×1068451885² = 2283178861120106450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 106845184 + ... + 106845193.

It is an arithmetic number, because the mean of its divisors is an integer number (320535567).

Almost surely, 2^1068451885 is an apocalyptic number.

It is an amenable number.

1068451885 is a deficient number, since it is larger than the sum of its proper divisors (213690383).

1068451885 is an equidigital number, since it uses as much as digits as its factorization.

1068451885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213690382.

The product of its (nonzero) digits is 307200, while the sum is 46.

The square root of 1068451885 is about 32687.1822737904. The cubic root of 1068451885 is about 1022.3156045077.

The spelling of 1068451885 in words is "one billion, sixty-eight million, four hundred fifty-one thousand, eight hundred eighty-five".