10459919865 has 16 divisors (see below), whose sum is σ = 16971590016. Its totient is φ = 5500051200.

The previous prime is 10459919861. The next prime is 10459919903. The reversal of 10459919865 is 56891995401.

It is not a de Polignac number, because 10459919865 - 2² = 10459919861 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10459919861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4909696 + ... + 4911825.

It is an arithmetic number, because the mean of its divisors is an integer number (1060724376).

Almost surely, 2^10459919865 is an apocalyptic number.

10459919865 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

10459919865 is a deficient number, since it is larger than the sum of its proper divisors (6511670151).

10459919865 is an equidigital number, since it uses as much as digits as its factorization.

10459919865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9821600.

The product of its (nonzero) digits is 3499200, while the sum is 57.

The spelling of 10459919865 in words is "ten billion, four hundred fifty-nine million, nine hundred nineteen thousand, eight hundred sixty-five".