12766547952957 has 8 divisors (see below), whose sum is σ = 17022363264640. Its totient is φ = 8510882304960.

The previous prime is 12766547952953. The next prime is 12766547952959. The reversal of 12766547952957 is 75925974566721.

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

It is not a de Polignac number, because 12766547952957 - 2² = 12766547952953 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 (12766547952953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37216732 + ... + 37558197.

It is an arithmetic number, because the mean of its divisors is an integer number (2127795408080).

Almost surely, 2^{12766547952957} is an apocalyptic number.

It is an amenable number.

12766547952957 is a deficient number, since it is larger than the sum of its proper divisors (4255815311683).

12766547952957 is an equidigital number, since it uses as much as digits as its factorization.

12766547952957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74831843.

The product of its digits is 2000376000, while the sum is 75.

The spelling of 12766547952957 in words is "twelve trillion, seven hundred sixty-six billion, five hundred forty-seven million, nine hundred fifty-two thousand, nine hundred fifty-seven".