451421500511320 has 128 divisors (see below), whose sum is σ = 1024066797408000. Its totient is φ = 179087175843840.

The previous prime is 451421500511299. The next prime is 451421500511369. The reversal of 451421500511320 is 23115005124154.

It is a super-2 number, since 2×451421500511320² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

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, 4688145736 + ... + 4688242024.

It is an arithmetic number, because the mean of its divisors is an integer number (8000521854750).

Almost surely, 2^{451421500511320} is an apocalyptic number.

451421500511320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

451421500511320 is an abundant number, since it is smaller than the sum of its proper divisors (572645296896680).

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

451421500511320 is a wasteful number, since it uses less digits than its factorization.

451421500511320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98333 (or 98329 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 34.

Adding to 451421500511320 its reverse (23115005124154), we get a palindrome (474536505635474).

The spelling of 451421500511320 in words is "four hundred fifty-one trillion, four hundred twenty-one billion, five hundred million, five hundred eleven thousand, three hundred twenty".