451655473891 has 8 divisors (see below), whose sum is σ = 472643085600. Its totient is φ = 430780396992.

The previous prime is 451655473873. The next prime is 451655473921. The reversal of 451655473891 is 198374556154.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 451655473891 - 2²³ = 451647085283 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (451655473811) 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 in 7 ways as a sum of consecutive naturals, for example, 28125490 + ... + 28141543.

It is an arithmetic number, because the mean of its divisors is an integer number (59080385700).

Almost surely, 2^451655473891 is an apocalyptic number.

451655473891 is a deficient number, since it is larger than the sum of its proper divisors (20987611709).

451655473891 is a wasteful number, since it uses less digits than its factorization.

451655473891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56267405.

The product of its digits is 18144000, while the sum is 58.

The spelling of 451655473891 in words is "four hundred fifty-one billion, six hundred fifty-five million, four hundred seventy-three thousand, eight hundred ninety-one".