420206463864 has 96 divisors (see below), whose sum is σ = 1249741434240. Its totient is φ = 126491976000.

The previous prime is 420206463847. The next prime is 420206463869. The reversal of 420206463864 is 468364602024.

420206463864 is a `hidden beast` number, since 4 + 2 + 0 + 2 + 0 + 6 + 4 + 638 + 6 + 4 = 666.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420206463869) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 1637242 + ... + 1876425.

It is an arithmetic number, because the mean of its divisors is an integer number (13018139940).

Almost surely, 2^420206463864 is an apocalyptic number.

420206463864 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

420206463864 is an abundant number, since it is smaller than the sum of its proper divisors (829534970376).

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

420206463864 is a wasteful number, since it uses less digits than its factorization.

420206463864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3513841 (or 3513834 counting only the distinct ones).

The product of its (nonzero) digits is 1327104, while the sum is 45.

The spelling of 420206463864 in words is "four hundred twenty billion, two hundred six million, four hundred sixty-three thousand, eight hundred sixty-four".