12952554391 has 32 divisors (see below), whose sum is σ = 15879283200. Its totient is φ = 10319063040.

The previous prime is 12952554389. The next prime is 12952554449. The reversal of 12952554391 is 19345525921.

It is a cyclic number.

It is not a de Polignac number, because 12952554391 - 2¹ = 12952554389 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 (12952554331) 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 31 ways as a sum of consecutive naturals, for example, 1546471 + ... + 1554823.

It is an arithmetic number, because the mean of its divisors is an integer number (496227600).

Almost surely, 2^12952554391 is an apocalyptic number.

12952554391 is a deficient number, since it is larger than the sum of its proper divisors (2926728809).

12952554391 is a wasteful number, since it uses less digits than its factorization.

12952554391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8599.

The product of its digits is 486000, while the sum is 46.

The spelling of 12952554391 in words is "twelve billion, nine hundred fifty-two million, five hundred fifty-four thousand, three hundred ninety-one".