420503005205 has 8 divisors (see below), whose sum is σ = 504607372704. Its totient is φ = 336399893200.

The previous prime is 420503005171. The next prime is 420503005207. The reversal of 420503005205 is 502500305024.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 420503005205 - 2⁶ = 420503005141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420503005207) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 752090 + ... + 1186020.

It is an arithmetic number, because the mean of its divisors is an integer number (63075921588).

Almost surely, 2^420503005205 is an apocalyptic number.

It is an amenable number.

420503005205 is a deficient number, since it is larger than the sum of its proper divisors (84104367499).

420503005205 is a wasteful number, since it uses less digits than its factorization.

420503005205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 627747.

The product of its (nonzero) digits is 6000, while the sum is 26.

The spelling of 420503005205 in words is "four hundred twenty billion, five hundred three million, five thousand, two hundred five".