451540641210632 has 8 divisors (see below), whose sum is σ = 846638702269950. Its totient is φ = 225770320605312.

The previous prime is 451540641210623. The next prime is 451540641210689. The reversal of 451540641210632 is 236012146045154.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 409038247393636 + 42502393816996 = 20224694^2 + 6519386^2 .

It is a tau number, because it is divible by the number of its divisors (8).

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, 28221290075657 + ... + 28221290075672.

Almost surely, 2^{451540641210632} is an apocalyptic number.

It is an amenable number.

451540641210632 is a deficient number, since it is larger than the sum of its proper divisors (395098061059318).

451540641210632 is a wasteful number, since it uses less digits than its factorization.

451540641210632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56442580151335 (or 56442580151331 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 44.

Adding to 451540641210632 its reverse (236012146045154), we get a palindrome (687552787255786).

The spelling of 451540641210632 in words is "four hundred fifty-one trillion, five hundred forty billion, six hundred forty-one million, two hundred ten thousand, six hundred thirty-two".