1068989453 has 8 divisors (see below), whose sum is σ = 1236422208. Its totient is φ = 905236704.

The previous prime is 1068989447. The next prime is 1068989477. The reversal of 1068989453 is 3549898601.

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

It is a cyclic number.

It is not a de Polignac number, because 1068989453 - 2¹⁴ = 1068973069 is a prime.

It is a super-2 number, since 2×1068989453² = 2285476901250478418, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1068989395 and 1068989404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1068989953) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 919376 + ... + 920537.

It is an arithmetic number, because the mean of its divisors is an integer number (154552776).

Almost surely, 2^1068989453 is an apocalyptic number.

It is an amenable number.

1068989453 is a deficient number, since it is larger than the sum of its proper divisors (167432755).

1068989453 is an equidigital number, since it uses as much as digits as its factorization.

1068989453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1840003.

The product of its (nonzero) digits is 1866240, while the sum is 53.

The square root of 1068989453 is about 32695.4041571595. The cubic root of 1068989453 is about 1022.4870276110.

The spelling of 1068989453 in words is "one billion, sixty-eight million, nine hundred eighty-nine thousand, four hundred fifty-three".