451785504512 has 162 divisors, whose sum is σ = 983653693344. Its totient is φ = 207059604480.

The previous prime is 451785504503. The next prime is 451785504523. The reversal of 451785504512 is 215405587154.

It is a super-2 number, since 2×451785504512² (a number of 24 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 17 ways as a sum of consecutive naturals, for example, 88809233 + ... + 88814319.

Almost surely, 2^451785504512 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 451785504512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (491826846672).

451785504512 is an abundant number, since it is smaller than the sum of its proper divisors (531868188832).

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

451785504512 is an equidigital number, since it uses as much as digits as its factorization.

451785504512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5203 (or 5139 counting only the distinct ones).

The product of its (nonzero) digits is 1120000, while the sum is 47.

The spelling of 451785504512 in words is "four hundred fifty-one billion, seven hundred eighty-five million, five hundred four thousand, five hundred twelve".