420431445455 has 16 divisors (see below), whose sum is σ = 576926812224. Its totient is φ = 288128290560.

The previous prime is 420431445391. The next prime is 420431445461. The reversal of 420431445455 is 554544134024.

It is not a de Polignac number, because 420431445455 - 2⁶ = 420431445391 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3429692 + ... + 3550161.

It is an arithmetic number, because the mean of its divisors is an integer number (36057925764).

Almost surely, 2^420431445455 is an apocalyptic number.

420431445455 is a deficient number, since it is larger than the sum of its proper divisors (156495366769).

420431445455 is a wasteful number, since it uses less digits than its factorization.

420431445455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6981586.

The product of its (nonzero) digits is 768000, while the sum is 41.

Adding to 420431445455 its reverse (554544134024), we get a palindrome (974975579479).

The spelling of 420431445455 in words is "four hundred twenty billion, four hundred thirty-one million, four hundred forty-five thousand, four hundred fifty-five".