420435423345 has 32 divisors (see below), whose sum is σ = 802222129152. Its totient is φ = 183842569152.

The previous prime is 420435423337. The next prime is 420435423433. The reversal of 420435423345 is 543324534024.

It is not a de Polignac number, because 420435423345 - 2³ = 420435423337 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 87044257 + ... + 87049086.

It is an arithmetic number, because the mean of its divisors is an integer number (25069441536).

Almost surely, 2^420435423345 is an apocalyptic number.

It is an amenable number.

420435423345 is a deficient number, since it is larger than the sum of its proper divisors (381786705807).

420435423345 is a wasteful number, since it uses less digits than its factorization.

420435423345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174093381.

The product of its (nonzero) digits is 691200, while the sum is 39.

Adding to 420435423345 its reverse (543324534024), we get a palindrome (963759957369).

The spelling of 420435423345 in words is "four hundred twenty billion, four hundred thirty-five million, four hundred twenty-three thousand, three hundred forty-five".