451422444202 has 4 divisors (see below), whose sum is σ = 677133666306. Its totient is φ = 225711222100.

The previous prime is 451422444167. The next prime is 451422444217. The reversal of 451422444202 is 202444224154.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 366897929841 + 84524514361 = 605721^2 + 290731^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112855611049 + ... + 112855611052.

Almost surely, 2^451422444202 is an apocalyptic number.

451422444202 is a deficient number, since it is larger than the sum of its proper divisors (225711222104).

451422444202 is a wasteful number, since it uses less digits than its factorization.

451422444202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225711222103.

The product of its (nonzero) digits is 81920, while the sum is 34.

Adding to 451422444202 its reverse (202444224154), we get a palindrome (653866668356).

The spelling of 451422444202 in words is "four hundred fifty-one billion, four hundred twenty-two million, four hundred forty-four thousand, two hundred two".