420424063515 has 96 divisors (see below), whose sum is σ = 769293158400. Its totient is φ = 212116078080.

The previous prime is 420424063513. The next prime is 420424063517. The reversal of 420424063515 is 515360424024.

420424063515 is a `hidden beast` number, since 4 + 2 + 0 + 4 + 2 + 4 + 0 + 635 + 15 = 666.

It is an interprime number because it is at equal distance from previous prime (420424063513) and next prime (420424063517).

It is not a de Polignac number, because 420424063515 - 2¹ = 420424063513 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 420424063515.

It is not an unprimeable number, because it can be changed into a prime (420424063511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 14718327 + ... + 14746863.

It is an arithmetic number, because the mean of its divisors is an integer number (8013470400).

Almost surely, 2^420424063515 is an apocalyptic number.

420424063515 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

420424063515 is a deficient number, since it is larger than the sum of its proper divisors (348869094885).

420424063515 is a wasteful number, since it uses less digits than its factorization.

420424063515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28817 (or 28814 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 36.

Adding to 420424063515 its reverse (515360424024), we get a palindrome (935784487539).

The spelling of 420424063515 in words is "four hundred twenty billion, four hundred twenty-four million, sixty-three thousand, five hundred fifteen".