7984966694897 has 4 divisors (see below), whose sum is σ = 7985060229696. Its totient is φ = 7984873160100.

The previous prime is 7984966694879. The next prime is 7984966694909.

7984966694897 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 7984966694897 - 2¹⁶ = 7984966629361 is a prime.

It is a super-2 number, since 2×7984966694897² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7984966694597) 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 3 ways as a sum of consecutive naturals, for example, 46639229 + ... + 46810122.

It is an arithmetic number, because the mean of its divisors is an integer number (1996265057424).

Almost surely, 2^{7984966694897} is an apocalyptic number.

It is an amenable number.

7984966694897 is a deficient number, since it is larger than the sum of its proper divisors (93534799).

7984966694897 is an equidigital number, since it uses as much as digits as its factorization.

7984966694897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93534798.

The product of its digits is 71108222976, while the sum is 92.

The spelling of 7984966694897 in words is "seven trillion, nine hundred eighty-four billion, nine hundred sixty-six million, six hundred ninety-four thousand, eight hundred ninety-seven".