10012738865 has 4 divisors (see below), whose sum is σ = 12015286644. Its totient is φ = 8010191088.

The previous prime is 10012738849. The next prime is 10012738867. The reversal of 10012738865 is 56883721001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 56883721001 = 15319 ⋅3713279.

It can be written as a sum of positive squares in 2 ways, for example, as 4111887376 + 5900851489 = 64124^2 + 76817^2 .

It is a cyclic number.

It is not a de Polignac number, because 10012738865 - 2⁴ = 10012738849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10012738867) 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, 1001273882 + ... + 1001273891.

It is an arithmetic number, because the mean of its divisors is an integer number (3003821661).

Almost surely, 2^10012738865 is an apocalyptic number.

It is an amenable number.

10012738865 is a deficient number, since it is larger than the sum of its proper divisors (2002547779).

10012738865 is an equidigital number, since it uses as much as digits as its factorization.

10012738865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2002547778.

The product of its (nonzero) digits is 80640, while the sum is 41.

The spelling of 10012738865 in words is "ten billion, twelve million, seven hundred thirty-eight thousand, eight hundred sixty-five".