16972465976729 has 2 divisors, whose sum is σ = 16972465976730. Its totient is φ = 16972465976728.

The previous prime is 16972465976693. The next prime is 16972465976783. The reversal of 16972465976729 is 92767956427961.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14810836795225 + 2161629181504 = 3848485^2 + 1470248^2 .

It is a cyclic number.

It is not a de Polignac number, because 16972465976729 - 2²⁴ = 16972449199513 is a prime.

It is not a weakly prime, because it can be changed into another prime (16972465976789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8486232988364 + 8486232988365.

It is an arithmetic number, because the mean of its divisors is an integer number (8486232988365).

Almost surely, 2^{16972465976729} is an apocalyptic number.

It is an amenable number.

16972465976729 is a deficient number, since it is larger than the sum of its proper divisors (1).

16972465976729 is an equidigital number, since it uses as much as digits as its factorization.

16972465976729 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4320812160, while the sum is 80.

The spelling of 16972465976729 in words is "sixteen trillion, nine hundred seventy-two billion, four hundred sixty-five million, nine hundred seventy-six thousand, seven hundred twenty-nine".