12922729525 has 54 divisors (see below), whose sum is σ = 16932241478. Its totient is φ = 9780960000.

The previous prime is 12922729513. The next prime is 12922729531. The reversal of 12922729525 is 52592722921.

It can be written as a sum of positive squares in 9 ways, for example, as 12552513444 + 370216081 = 112038^2 + 19241^2 .

It is not a de Polignac number, because 12922729525 - 2⁹ = 12922729013 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 53 ways as a sum of consecutive naturals, for example, 182010240 + ... + 182010310.

Almost surely, 2^12922729525 is an apocalyptic number.

It is an amenable number.

12922729525 is a deficient number, since it is larger than the sum of its proper divisors (4009511953).

12922729525 is an frugal number, since it uses more digits than its factorization.

12922729525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295 (or 178 counting only the distinct ones).

The product of its digits is 453600, while the sum is 46.

The spelling of 12922729525 in words is "twelve billion, nine hundred twenty-two million, seven hundred twenty-nine thousand, five hundred twenty-five".