427744918236 has 12 divisors (see below), whose sum is σ = 998071475912. Its totient is φ = 142581639408.

The previous prime is 427744918201. The next prime is 427744918241. The reversal of 427744918236 is 632819447724.

It is a tau number, because it is divible by the number of its divisors (12).

It is a hoax number, since the sum of its digits (57) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 17822704915 + ... + 17822704938.

Almost surely, 2^427744918236 is an apocalyptic number.

It is an amenable number.

427744918236 is an abundant number, since it is smaller than the sum of its proper divisors (570326557676).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

427744918236 is a wasteful number, since it uses less digits than its factorization.

427744918236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35645409860 (or 35645409858 counting only the distinct ones).

The product of its digits is 16257024, while the sum is 57.

The spelling of 427744918236 in words is "four hundred twenty-seven billion, seven hundred forty-four million, nine hundred eighteen thousand, two hundred thirty-six".