8419136865 has 32 divisors (see below), whose sum is σ = 14504780160. Its totient is φ = 4154440704.

The previous prime is 8419136849. The next prime is 8419136893. The reversal of 8419136865 is 5686319148.

It is not a de Polignac number, because 8419136865 - 2⁴ = 8419136849 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 264754 + ... + 294843.

It is an arithmetic number, because the mean of its divisors is an integer number (453274380).

Almost surely, 2^8419136865 is an apocalyptic number.

8419136865 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

8419136865 is a deficient number, since it is larger than the sum of its proper divisors (6085643295).

8419136865 is a wasteful number, since it uses less digits than its factorization.

8419136865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 559681.

The product of its digits is 1244160, while the sum is 51.

The square root of 8419136865 is about 91755.8546633401. The cubic root of 8419136865 is about 2034.3352444019.

The spelling of 8419136865 in words is "eight billion, four hundred nineteen million, one hundred thirty-six thousand, eight hundred sixty-five".