451222474117 has 2 divisors, whose sum is σ = 451222474118. Its totient is φ = 451222474116.

The previous prime is 451222474103. The next prime is 451222474127. The reversal of 451222474117 is 711474222154.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 313867737121 + 137354736996 = 560239^2 + 370614^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-451222474117 is a prime.

It is a super-2 number, since 2×451222474117² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 451222474117.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (451222474127) 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, 225611237058 + 225611237059.

It is an arithmetic number, because the mean of its divisors is an integer number (225611237059).

Almost surely, 2^451222474117 is an apocalyptic number.

It is an amenable number.

451222474117 is a deficient number, since it is larger than the sum of its proper divisors (1).

451222474117 is an equidigital number, since it uses as much as digits as its factorization.

451222474117 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 125440, while the sum is 40.

The spelling of 451222474117 in words is "four hundred fifty-one billion, two hundred twenty-two million, four hundred seventy-four thousand, one hundred seventeen".