451115530000 has 100 divisors (see below), whose sum is σ = 1100536378128. Its totient is φ = 179068240000.

The previous prime is 451115529973. The next prime is 451115530007. The reversal of 451115530000 is 35511154.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (100).

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (451115530007) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1137819 + ... + 1482181.

Almost surely, 2^451115530000 is an apocalyptic number.

451115530000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 451115530000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (550268189064).

451115530000 is an abundant number, since it is smaller than the sum of its proper divisors (649420848128).

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

451115530000 is a wasteful number, since it uses less digits than its factorization.

451115530000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344522 (or 344501 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 25.

The spelling of 451115530000 in words is "four hundred fifty-one billion, one hundred fifteen million, five hundred thirty thousand".