11465304889 has 4 divisors (see below), whose sum is σ = 11860660260. Its totient is φ = 11069949520.

The previous prime is 11465304863. The next prime is 11465304899. The reversal of 11465304889 is 98840356411.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 98840356411 = 3623 ⋅27281357.

It can be written as a sum of positive squares in 2 ways, for example, as 4720789264 + 6744515625 = 68708^2 + 82125^2 .

It is a cyclic number.

It is not a de Polignac number, because 11465304889 - 2¹⁵ = 11465272121 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11465304899) 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, 197677642 + ... + 197677699.

It is an arithmetic number, because the mean of its divisors is an integer number (2965165065).

Almost surely, 2^11465304889 is an apocalyptic number.

It is an amenable number.

11465304889 is a deficient number, since it is larger than the sum of its proper divisors (395355371).

11465304889 is an equidigital number, since it uses as much as digits as its factorization.

11465304889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 395355370.

The product of its (nonzero) digits is 829440, while the sum is 49.

It can be divided in two parts, 1146 and 5304889, that added together give a palindrome (5306035).

The spelling of 11465304889 in words is "eleven billion, four hundred sixty-five million, three hundred four thousand, eight hundred eighty-nine".