12992773493401 has 9 divisors (see below), whose sum is σ = 14069148665949. Its totient is φ = 11993286123936.

The previous prime is 12992773493309. The next prime is 12992773493437. The reversal of 12992773493401 is 10439437729921.

The square root of 12992773493401 is 3604549.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 76368769801 + 12916404723600 = 276349^2 + 3593940^2 .

It is not a de Polignac number, because 12992773493401 - 2⁴¹ = 10793750237849 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12992773493401.

It is not an unprimeable number, because it can be changed into a prime (12992773493471) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 46720501 + ... + 46997773.

It is an arithmetic number, because the mean of its divisors is an integer number (1563238740661).

Almost surely, 2^{12992773493401} is an apocalyptic number.

12992773493401 is the 3604549-th square number.

12992773493401 is the 1802275-th centered octagonal number.

It is an amenable number.

12992773493401 is a deficient number, since it is larger than the sum of its proper divisors (1076375172548).

12992773493401 is an frugal number, since it uses more digits than its factorization.

12992773493401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 554572 (or 277286 counting only the distinct ones).

The product of its (nonzero) digits is 20575296, while the sum is 61.

The spelling of 12992773493401 in words is "twelve trillion, nine hundred ninety-two billion, seven hundred seventy-three million, four hundred ninety-three thousand, four hundred one".