420433044545 has 16 divisors (see below), whose sum is σ = 505356942720. Its totient is φ = 335788637184.

The previous prime is 420433044523. The next prime is 420433044589. The reversal of 420433044545 is 545440334024.

It is a cyclic number.

It is not a de Polignac number, because 420433044545 - 2¹⁰ = 420433043521 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 420433044499 and 420433044508.

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, 9052172 + ... + 9098498.

It is an arithmetic number, because the mean of its divisors is an integer number (31584808920).

Almost surely, 2^420433044545 is an apocalyptic number.

It is an amenable number.

420433044545 is a deficient number, since it is larger than the sum of its proper divisors (84923898175).

420433044545 is a wasteful number, since it uses less digits than its factorization.

420433044545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49304.

The product of its (nonzero) digits is 460800, while the sum is 38.

Adding to 420433044545 its reverse (545440334024), we get a palindrome (965873378569).

The spelling of 420433044545 in words is "four hundred twenty billion, four hundred thirty-three million, forty-four thousand, five hundred forty-five".