451343032530 has 128 divisors (see below), whose sum is σ = 1226156133888. Its totient is φ = 105493420032.

The previous prime is 451343032529. The next prime is 451343032559. The reversal of 451343032530 is 35230343154.

It is a junction number, because it is equal to n+sod(n) for n = 451343032491 and 451343032500.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1045252 + ... + 1412528.

It is an arithmetic number, because the mean of its divisors is an integer number (9579344796).

Almost surely, 2^451343032530 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 451343032530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (613078066944).

451343032530 is an abundant number, since it is smaller than the sum of its proper divisors (774813101358).

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

451343032530 is a wasteful number, since it uses less digits than its factorization.

451343032530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 367460.

The product of its (nonzero) digits is 64800, while the sum is 33.

Adding to 451343032530 its reverse (35230343154), we get a palindrome (486573375684).

The spelling of 451343032530 in words is "four hundred fifty-one billion, three hundred forty-three million, thirty-two thousand, five hundred thirty".