451827406689 has 4 divisors (see below), whose sum is σ = 602436542256. Its totient is φ = 301218271124.

The previous prime is 451827406673. The next prime is 451827406697. The reversal of 451827406689 is 986604728154.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 451827406689 - 2⁴ = 451827406673 is a prime.

It is not an unprimeable number, because it can be changed into a prime (451827486689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75304567779 + ... + 75304567784.

It is an arithmetic number, because the mean of its divisors is an integer number (150609135564).

Almost surely, 2^451827406689 is an apocalyptic number.

It is an amenable number.

451827406689 is a deficient number, since it is larger than the sum of its proper divisors (150609135567).

451827406689 is a wasteful number, since it uses less digits than its factorization.

451827406689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150609135566.

The product of its (nonzero) digits is 23224320, while the sum is 60.

The spelling of 451827406689 in words is "four hundred fifty-one billion, eight hundred twenty-seven million, four hundred six thousand, six hundred eighty-nine".