427805218359 has 16 divisors (see below), whose sum is σ = 634638547200. Its totient is φ = 284819611608.

The previous prime is 427805218333. The next prime is 427805218387. The reversal of 427805218359 is 953812508724.

427805218359 is a `hidden beast` number, since 4 + 2 + 7 + 80 + 521 + 8 + 35 + 9 = 666.

It is not a de Polignac number, because 427805218359 - 2¹⁷ = 427805087287 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (427805218319) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10642549 + ... + 10682670.

It is an arithmetic number, because the mean of its divisors is an integer number (39664909200).

Almost surely, 2^427805218359 is an apocalyptic number.

427805218359 is a deficient number, since it is larger than the sum of its proper divisors (206833328841).

427805218359 is a wasteful number, since it uses less digits than its factorization.

427805218359 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21325971 (or 21325965 counting only the distinct ones).

The product of its (nonzero) digits is 4838400, while the sum is 54.

The spelling of 427805218359 in words is "four hundred twenty-seven billion, eight hundred five million, two hundred eighteen thousand, three hundred fifty-nine".