427761721311020 has 24 divisors (see below), whose sum is σ = 898315633291104. Its totient is φ = 171101637374336.

The previous prime is 427761721311007. The next prime is 427761721311049. The reversal of 427761721311020 is 20113127167724.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 189547097 + ... + 191790576.

It is an arithmetic number, because the mean of its divisors is an integer number (37429818053796).

Almost surely, 2^{427761721311020} is an apocalyptic number.

It is an amenable number.

427761721311020 is an abundant number, since it is smaller than the sum of its proper divisors (470553911980084).

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

427761721311020 is a wasteful number, since it uses less digits than its factorization.

427761721311020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 381393769 (or 381393767 counting only the distinct ones).

The product of its (nonzero) digits is 197568, while the sum is 44.

Adding to 427761721311020 its reverse (20113127167724), we get a palindrome (447874848478744).

The spelling of 427761721311020 in words is "four hundred twenty-seven trillion, seven hundred sixty-one billion, seven hundred twenty-one million, three hundred eleven thousand, twenty".