7971496951 has 4 divisors (see below), whose sum is σ = 8696178504. Its totient is φ = 7246815400.

The previous prime is 7971496937. The next prime is 7971496969. The reversal of 7971496951 is 1596941797.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1596941797 = 11 ⋅145176527.

It is not a de Polignac number, because 7971496951 - 2⁷ = 7971496823 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 (7971496901) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 362340760 + ... + 362340781.

It is an arithmetic number, because the mean of its divisors is an integer number (2174044626).

Almost surely, 2^7971496951 is an apocalyptic number.

7971496951 is a deficient number, since it is larger than the sum of its proper divisors (724681553).

7971496951 is a wasteful number, since it uses less digits than its factorization.

7971496951 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 724681552.

The product of its digits is 4286520, while the sum is 58.

The square root of 7971496951 is about 89283.2400341744. The cubic root of 7971496951 is about 1997.6219194037.

The spelling of 7971496951 in words is "seven billion, nine hundred seventy-one million, four hundred ninety-six thousand, nine hundred fifty-one".