7971468215119 has 4 divisors (see below), whose sum is σ = 8440378110144. Its totient is φ = 7502558320096.

The previous prime is 7971468215111. The next prime is 7971468215149. The reversal of 7971468215119 is 9115128641797.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 7971468215119 - 2³ = 7971468215111 is a prime.

It is a super-2 number, since 2×7971468215119² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7971468215111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 234454947487 + ... + 234454947520.

It is an arithmetic number, because the mean of its divisors is an integer number (2110094527536).

Almost surely, 2^{7971468215119} is an apocalyptic number.

7971468215119 is a deficient number, since it is larger than the sum of its proper divisors (468909895025).

7971468215119 is a wasteful number, since it uses less digits than its factorization.

7971468215119 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 468909895024.

The product of its digits is 7620480, while the sum is 61.

The spelling of 7971468215119 in words is "seven trillion, nine hundred seventy-one billion, four hundred sixty-eight million, two hundred fifteen thousand, one hundred nineteen".