10249844865 has 16 divisors (see below), whose sum is σ = 17661271488. Its totient is φ = 5046077376.

The previous prime is 10249844863. The next prime is 10249844887. The reversal of 10249844865 is 56844894201.

It is not a de Polignac number, because 10249844865 - 2¹ = 10249844863 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10249844863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26281459 + ... + 26281848.

It is an arithmetic number, because the mean of its divisors is an integer number (1103829468).

Almost surely, 2^10249844865 is an apocalyptic number.

10249844865 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

10249844865 is a deficient number, since it is larger than the sum of its proper divisors (7411426623).

10249844865 is a wasteful number, since it uses less digits than its factorization.

10249844865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52563328.

The product of its (nonzero) digits is 2211840, while the sum is 51.

The spelling of 10249844865 in words is "ten billion, two hundred forty-nine million, eight hundred forty-four thousand, eight hundred sixty-five".