420587445861 has 24 divisors (see below), whose sum is σ = 664239959136. Its totient is φ = 254326057440.

The previous prime is 420587445841. The next prime is 420587445869. The reversal of 420587445861 is 168544785024.

420587445861 is a `hidden beast` number, since 4 + 2 + 0 + 58 + 7 + 4 + 4 + 586 + 1 = 666.

It is not a de Polignac number, because 420587445861 - 2¹⁴ = 420587429477 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 420587445798 and 420587445807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420587445869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4751130 + ... + 4838843.

It is an arithmetic number, because the mean of its divisors is an integer number (27676664964).

Almost surely, 2^420587445861 is an apocalyptic number.

It is an amenable number.

420587445861 is a deficient number, since it is larger than the sum of its proper divisors (243652513275).

420587445861 is a wasteful number, since it uses less digits than its factorization.

420587445861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9590433 (or 9590430 counting only the distinct ones).

The product of its (nonzero) digits is 8601600, while the sum is 54.

The spelling of 420587445861 in words is "four hundred twenty billion, five hundred eighty-seven million, four hundred forty-five thousand, eight hundred sixty-one".