12972934425617 has 8 divisors (see below), whose sum is σ = 13473257135400. Its totient is φ = 12480490813824.

The previous prime is 12972934425613. The next prime is 12972934425637. The reversal of 12972934425617 is 71652443927921.

It is a happy number.

It is a Cunningham number, because it is equal to 3601796²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 2491081395856 + 10481853029761 = 1578316^2 + 3237569^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 12972934425617 - 2² = 12972934425613 is a prime.

It is a super-2 number, since 2×12972934425617² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12972934425617.

It is not an unprimeable number, because it can be changed into a prime (12972934425613) 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, 1969771142 + ... + 1969777727.

It is an arithmetic number, because the mean of its divisors is an integer number (1684157141925).

Almost surely, 2^{12972934425617} is an apocalyptic number.

It is an amenable number.

12972934425617 is a deficient number, since it is larger than the sum of its proper divisors (500322709783).

12972934425617 is an equidigital number, since it uses as much as digits as its factorization.

12972934425617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3939548995.

The product of its digits is 45722880, while the sum is 62.

The spelling of 12972934425617 in words is "twelve trillion, nine hundred seventy-two billion, nine hundred thirty-four million, four hundred twenty-five thousand, six hundred seventeen".