7971533278467 has 16 divisors (see below), whose sum is σ = 11595146568960. Its totient is φ = 4831153509600.

The previous prime is 7971533278399. The next prime is 7971533278493. The reversal of 7971533278467 is 7648723351797.

It is not a de Polignac number, because 7971533278467 - 2¹⁶ = 7971533212931 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7971533278567) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 117909 + ... + 3994617.

It is an arithmetic number, because the mean of its divisors is an integer number (724696660560).

Almost surely, 2^{7971533278467} is an apocalyptic number.

7971533278467 is a deficient number, since it is larger than the sum of its proper divisors (3623613290493).

7971533278467 is a wasteful number, since it uses less digits than its factorization.

7971533278467 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3939034.

The product of its digits is 373403520, while the sum is 69.

The spelling of 7971533278467 in words is "seven trillion, nine hundred seventy-one billion, five hundred thirty-three million, two hundred seventy-eight thousand, four hundred sixty-seven".