426717117663 has 32 divisors (see below), whose sum is σ = 581643804672. Its totient is φ = 278171712000.

The previous prime is 426717117661. The next prime is 426717117667. The reversal of 426717117663 is 366711717624.

It is not a de Polignac number, because 426717117663 - 2¹ = 426717117661 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (426717117661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 99908218 + ... + 99912488.

It is an arithmetic number, because the mean of its divisors is an integer number (18176368896).

Almost surely, 2^426717117663 is an apocalyptic number.

426717117663 is a deficient number, since it is larger than the sum of its proper divisors (154926687009).

426717117663 is a wasteful number, since it uses less digits than its factorization.

426717117663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6295.

The product of its digits is 1778112, while the sum is 51.

The spelling of 426717117663 in words is "four hundred twenty-six billion, seven hundred seventeen million, one hundred seventeen thousand, six hundred sixty-three".