7991154967 has 2 divisors, whose sum is σ = 7991154968. Its totient is φ = 7991154966.

The previous prime is 7991154961. The next prime is 7991154971. The reversal of 7991154967 is 7694511997.

It is a strong prime.

It is an emirp because it is prime and its reverse (7694511997) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7991154967 - 2¹¹ = 7991152919 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7991154961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3995577483 + 3995577484.

It is an arithmetic number, because the mean of its divisors is an integer number (3995577484).

Almost surely, 2^7991154967 is an apocalyptic number.

7991154967 is a deficient number, since it is larger than the sum of its proper divisors (1).

7991154967 is an equidigital number, since it uses as much as digits as its factorization.

7991154967 is an odious number, because the sum of its binary digits is odd.

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

The square root of 7991154967 is about 89393.2601877793. The cubic root of 7991154967 is about 1999.2626421017.

The spelling of 7991154967 in words is "seven billion, nine hundred ninety-one million, one hundred fifty-four thousand, nine hundred sixty-seven".