4167126651991 has 2 divisors, whose sum is σ = 4167126651992. Its totient is φ = 4167126651990.

The previous prime is 4167126651983. The next prime is 4167126652069. The reversal of 4167126651991 is 1991566217614.

It is a happy number.

4167126651991 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4167126651991 - 2³ = 4167126651983 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4167126651911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2083563325995 + 2083563325996.

It is an arithmetic number, because the mean of its divisors is an integer number (2083563325996).

Almost surely, 2^{4167126651991} is an apocalyptic number.

4167126651991 is a deficient number, since it is larger than the sum of its proper divisors (1).

4167126651991 is an equidigital number, since it uses as much as digits as its factorization.

4167126651991 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4898880, while the sum is 58.

The spelling of 4167126651991 in words is "four trillion, one hundred sixty-seven billion, one hundred twenty-six million, six hundred fifty-one thousand, nine hundred ninety-one".