451644132325061 has 8 divisors (see below), whose sum is σ = 486389360379384. Its totient is φ = 416899385945280.

The previous prime is 451644132325049. The next prime is 451644132325069. The reversal of 451644132325061 is 160523231446154.

It can be written as a sum of positive squares in 4 ways, for example, as 20534945402500 + 431109186922561 = 4531550^2 + 20763169^2 .

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 451644132325061 - 2¹⁰ = 451644132324037 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 451644132324997 and 451644132325015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (451644132325069) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 118470026 + ... + 122222891.

It is an arithmetic number, because the mean of its divisors is an integer number (60798670047423).

Almost surely, 2^{451644132325061} is an apocalyptic number.

It is an amenable number.

451644132325061 is a deficient number, since it is larger than the sum of its proper divisors (34745228054323).

451644132325061 is a wasteful number, since it uses less digits than its factorization.

451644132325061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240837271.

The product of its (nonzero) digits is 2073600, while the sum is 47.

The spelling of 451644132325061 in words is "four hundred fifty-one trillion, six hundred forty-four billion, one hundred thirty-two million, three hundred twenty-five thousand, sixty-one".