451143132074191 has 2 divisors, whose sum is σ = 451143132074192. Its totient is φ = 451143132074190.

The previous prime is 451143132074123. The next prime is 451143132074221. The reversal of 451143132074191 is 191470231341154.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-451143132074191 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (451143132074101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 225571566037095 + 225571566037096.

It is an arithmetic number, because the mean of its divisors is an integer number (225571566037096).

Almost surely, 2^{451143132074191} is an apocalyptic number.

451143132074191 is a deficient number, since it is larger than the sum of its proper divisors (1).

451143132074191 is an equidigital number, since it uses as much as digits as its factorization.

451143132074191 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 362880, while the sum is 46.

The spelling of 451143132074191 in words is "four hundred fifty-one trillion, one hundred forty-three billion, one hundred thirty-two million, seventy-four thousand, one hundred ninety-one".