420451120512 has 96 divisors (see below), whose sum is σ = 1210020959160. Its totient is φ = 140135424000.

The previous prime is 420451120493. The next prime is 420451120559. The reversal of 420451120512 is 215021154024.

It is a happy number.

420451120512 is a `hidden beast` number, since 4 + 2 + 0 + 451 + 1 + 205 + 1 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18110512 + ... + 18133712.

Almost surely, 2^420451120512 is an apocalyptic number.

It is an amenable number.

420451120512 is an abundant number, since it is smaller than the sum of its proper divisors (789569838648).

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

420451120512 is a wasteful number, since it uses less digits than its factorization.

420451120512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38952 (or 38937 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

Adding to 420451120512 its reverse (215021154024), we get a palindrome (635472274536).

The spelling of 420451120512 in words is "four hundred twenty billion, four hundred fifty-one million, one hundred twenty thousand, five hundred twelve".