420005264651 has 8 divisors (see below), whose sum is σ = 483459298560. Its totient is φ = 357414551208.

The previous prime is 420005264621. The next prime is 420005264671. The reversal of 420005264651 is 156462500024.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-420005264651 is a prime.

It is not an unprimeable number, because it can be changed into a prime (420005264621) 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 7 ways as a sum of consecutive naturals, for example, 215829071 + ... + 215831016.

It is an arithmetic number, because the mean of its divisors is an integer number (60432412320).

Almost surely, 2^420005264651 is an apocalyptic number.

420005264651 is a deficient number, since it is larger than the sum of its proper divisors (63454033909).

420005264651 is a wasteful number, since it uses less digits than its factorization.

420005264651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 431660233.

The product of its (nonzero) digits is 57600, while the sum is 35.

Adding to 420005264651 its reverse (156462500024), we get a palindrome (576467764675).

The spelling of 420005264651 in words is "four hundred twenty billion, five million, two hundred sixty-four thousand, six hundred fifty-one".