12318740765 has 8 divisors (see below), whose sum is σ = 14913308088. Its totient is φ = 9767779840.

The previous prime is 12318740747. The next prime is 12318740767. The reversal of 12318740765 is 56704781321.

It can be written as a sum of positive squares in 4 ways, for example, as 882149401 + 11436591364 = 29701^2 + 106942^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12318740765 - 2⁶ = 12318740701 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12318740767) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10900976 + ... + 10902105.

It is an arithmetic number, because the mean of its divisors is an integer number (1864163511).

Almost surely, 2^12318740765 is an apocalyptic number.

It is an amenable number.

12318740765 is a deficient number, since it is larger than the sum of its proper divisors (2594567323).

12318740765 is a wasteful number, since it uses less digits than its factorization.

12318740765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21803199.

The product of its (nonzero) digits is 282240, while the sum is 44.

The spelling of 12318740765 in words is "twelve billion, three hundred eighteen million, seven hundred forty thousand, seven hundred sixty-five".