427786963623 has 24 divisors (see below), whose sum is σ = 655350540000. Its totient is φ = 268319684160.

The previous prime is 427786963589. The next prime is 427786963627. The reversal of 427786963623 is 326369687724.

427786963623 is a `hidden beast` number, since 42 + 77 + 86 + 96 + 362 + 3 = 666.

It is not a de Polignac number, because 427786963623 - 2¹⁰ = 427786962599 is a prime.

It is a super-2 number, since 2×427786963623² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (427786963627) 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 23 ways as a sum of consecutive naturals, for example, 16926748 + ... + 16952001.

It is an arithmetic number, because the mean of its divisors is an integer number (27306272500).

Almost surely, 2^427786963623 is an apocalyptic number.

427786963623 is a deficient number, since it is larger than the sum of its proper divisors (227563576377).

427786963623 is a wasteful number, since it uses less digits than its factorization.

427786963623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33878839 (or 33878836 counting only the distinct ones).

The product of its digits is 109734912, while the sum is 63.

The spelling of 427786963623 in words is "four hundred twenty-seven billion, seven hundred eighty-six million, nine hundred sixty-three thousand, six hundred twenty-three".