420554511442 has 64 divisors (see below), whose sum is σ = 693134475264. Its totient is φ = 190217401920.

The previous prime is 420554511431. The next prime is 420554511451. The reversal of 420554511442 is 244115455024.

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, 98189433 + ... + 98193715.

It is an arithmetic number, because the mean of its divisors is an integer number (10830226176).

Almost surely, 2^420554511442 is an apocalyptic number.

420554511442 is a deficient number, since it is larger than the sum of its proper divisors (272579963822).

420554511442 is a wasteful number, since it uses less digits than its factorization.

420554511442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4783.

The product of its (nonzero) digits is 128000, while the sum is 37.

Adding to 420554511442 its reverse (244115455024), we get a palindrome (664669966466).

The spelling of 420554511442 in words is "four hundred twenty billion, five hundred fifty-four million, five hundred eleven thousand, four hundred forty-two".