420688208202 has 16 divisors (see below), whose sum is σ = 870389396640. Its totient is φ = 135393906032.

The previous prime is 420688208177. The next prime is 420688208219. The reversal of 420688208202 is 202802886024.

It is a super-3 number, since 3×420688208202³ (a number of 36 digits) contains 333 as substring.

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 7 ways as a sum of consecutive naturals, for example, 1208873988 + ... + 1208874335.

It is an arithmetic number, because the mean of its divisors is an integer number (54399337290).

Almost surely, 2^420688208202 is an apocalyptic number.

420688208202 is an abundant number, since it is smaller than the sum of its proper divisors (449701188438).

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

420688208202 is a wasteful number, since it uses less digits than its factorization.

420688208202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2417748357.

The product of its (nonzero) digits is 196608, while the sum is 42.

The spelling of 420688208202 in words is "four hundred twenty billion, six hundred eighty-eight million, two hundred eight thousand, two hundred two".