1468015889 has 4 divisors (see below), whose sum is σ = 1495714356. Its totient is φ = 1440317424.

The previous prime is 1468015847. The next prime is 1468015903. The reversal of 1468015889 is 9885108641.

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 807525889 + 660490000 = 28417^2 + 25700^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1468015889 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1468015489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13849154 + ... + 13849259.

It is an arithmetic number, because the mean of its divisors is an integer number (373928589).

Almost surely, 2^1468015889 is an apocalyptic number.

It is an amenable number.

1468015889 is a deficient number, since it is larger than the sum of its proper divisors (27698467).

1468015889 is an equidigital number, since it uses as much as digits as its factorization.

1468015889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27698466.

The product of its (nonzero) digits is 552960, while the sum is 50.

The square root of 1468015889 is about 38314.6954705372. The cubic root of 1468015889 is about 1136.5195709909.

The spelling of 1468015889 in words is "one billion, four hundred sixty-eight million, fifteen thousand, eight hundred eighty-nine".