12923005765 has 8 divisors (see below), whose sum is σ = 15525214488. Its totient is φ = 10326666240.

The previous prime is 12923005759. The next prime is 12923005789. The reversal of 12923005765 is 56750032921.

It can be written as a sum of positive squares in 4 ways, for example, as 152423716 + 12770582049 = 12346^2 + 113007^2 .

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

It is not a de Polignac number, because 12923005765 - 2⁷ = 12923005637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1462452 + ... + 1471261.

It is an arithmetic number, because the mean of its divisors is an integer number (1940651811).

Almost surely, 2^12923005765 is an apocalyptic number.

It is an amenable number.

12923005765 is a deficient number, since it is larger than the sum of its proper divisors (2602208723).

12923005765 is an equidigital number, since it uses as much as digits as its factorization.

12923005765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2934599.

The product of its (nonzero) digits is 113400, while the sum is 40.

The spelling of 12923005765 in words is "twelve billion, nine hundred twenty-three million, five thousand, seven hundred sixty-five".