451323823132 has 144 divisors (see below), whose sum is σ = 1045506147840. Its totient is φ = 168500642688.

The previous prime is 451323823129. The next prime is 451323823133. The reversal of 451323823132 is 231328323154.

It is a junction number, because it is equal to n+sod(n) for n = 451323823091 and 451323823100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (451323823133) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 12714633 + ... + 12750079.

It is an arithmetic number, because the mean of its divisors is an integer number (7260459360).

Almost surely, 2^451323823132 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 451323823132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (522753073920).

451323823132 is an abundant number, since it is smaller than the sum of its proper divisors (594182324708).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

451323823132 is a wasteful number, since it uses less digits than its factorization.

451323823132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35760 (or 35751 counting only the distinct ones).

The product of its digits is 103680, while the sum is 37.

The spelling of 451323823132 in words is "four hundred fifty-one billion, three hundred twenty-three million, eight hundred twenty-three thousand, one hundred thirty-two".