20227634784 has 144 divisors (see below), whose sum is σ = 67516813728. Its totient is φ = 5623105536.

The previous prime is 20227634767. The next prime is 20227634813. The reversal of 20227634784 is 48743672202.

20227634784 is a `hidden beast` number, since 2 + 0 + 2 + 2 + 7 + 634 + 7 + 8 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 60997 + ... + 210180.

It is an arithmetic number, because the mean of its divisors is an integer number (468866762).

Almost surely, 2^20227634784 is an apocalyptic number.

20227634784 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20227634784 is an abundant number, since it is smaller than the sum of its proper divisors (47289178944).

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

20227634784 is a wasteful number, since it uses less digits than its factorization.

20227634784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271237 (or 271226 counting only the distinct ones).

The product of its (nonzero) digits is 903168, while the sum is 45.

The spelling of 20227634784 in words is "twenty billion, two hundred twenty-seven million, six hundred thirty-four thousand, seven hundred eighty-four".