451321420332 has 96 divisors (see below), whose sum is σ = 1064962080000. Its totient is φ = 148756529152.

The previous prime is 451321420321. The next prime is 451321420357. The reversal of 451321420332 is 233024123154.

It is a self number, because there is not a number n which added to its sum of digits gives 451321420332.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 301080919 + ... + 301082417.

It is an arithmetic number, because the mean of its divisors is an integer number (11093355000).

Almost surely, 2^451321420332 is an apocalyptic number.

It is an amenable number.

451321420332 is an abundant number, since it is smaller than the sum of its proper divisors (613640659668).

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

451321420332 is a wasteful number, since it uses less digits than its factorization.

451321420332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2415 (or 2413 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 30.

Adding to 451321420332 its reverse (233024123154), we get a palindrome (684345543486).

The spelling of 451321420332 in words is "four hundred fifty-one billion, three hundred twenty-one million, four hundred twenty thousand, three hundred thirty-two".