420507804740445 has 32 divisors (see below), whose sum is σ = 747761658230400. Its totient is φ = 224213160920832.

The previous prime is 420507804740417. The next prime is 420507804740533. The reversal of 420507804740445 is 544047408705024.

420507804740445 is a `hidden beast` number, since 4 + 2 + 0 + 50 + 7 + 80 + 4 + 74 + 0 + 445 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-420507804740445 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 420507804740391 and 420507804740400.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 399947167 + ... + 400997196.

It is an arithmetic number, because the mean of its divisors is an integer number (23367551819700).

Almost surely, 2^{420507804740445} is an apocalyptic number.

420507804740445 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

420507804740445 is a deficient number, since it is larger than the sum of its proper divisors (327253853489955).

420507804740445 is a wasteful number, since it uses less digits than its factorization.

420507804740445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 800948266 (or 800948260 counting only the distinct ones).

The product of its (nonzero) digits is 20070400, while the sum is 54.

The spelling of 420507804740445 in words is "four hundred twenty trillion, five hundred seven billion, eight hundred four million, seven hundred forty thousand, four hundred forty-five".