7991414867 has 2 divisors, whose sum is σ = 7991414868. Its totient is φ = 7991414866.

The previous prime is 7991414813. The next prime is 7991414923. The reversal of 7991414867 is 7684141997.

It is an a-pointer prime, because the next prime (7991414923) can be obtained adding 7991414867 to its sum of digits (56).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 7991414867 - 2¹⁴ = 7991398483 is a prime.

It is a super-5 number, since 5×7991414867⁵ (a number of 51 digits) contains 55555 as substring.

It is not a weakly prime, because it can be changed into another prime (7991414467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3995707433 + 3995707434.

It is an arithmetic number, because the mean of its divisors is an integer number (3995707434).

Almost surely, 2^7991414867 is an apocalyptic number.

7991414867 is a deficient number, since it is larger than the sum of its proper divisors (1).

7991414867 is an equidigital number, since it uses as much as digits as its factorization.

7991414867 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3048192, while the sum is 56.

The square root of 7991414867 is about 89394.7138649708. The cubic root of 7991414867 is about 1999.2843161789.

The spelling of 7991414867 in words is "seven billion, nine hundred ninety-one million, four hundred fourteen thousand, eight hundred sixty-seven".