427801747860 has 144 divisors (see below), whose sum is σ = 1346282683200. Its totient is φ = 114033360384.

The previous prime is 427801747847. The next prime is 427801747927. The reversal of 427801747860 is 68747108724.

427801747860 is a `hidden beast` number, since 4 + 27 + 80 + 17 + 478 + 60 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 427801747797 and 427801747806.

It is a congruent number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 12662871 + ... + 12696609.

It is an arithmetic number, because the mean of its divisors is an integer number (9349185300).

Almost surely, 2^427801747860 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 427801747860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (673141341600).

427801747860 is an abundant number, since it is smaller than the sum of its proper divisors (918480935340).

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

427801747860 is a wasteful number, since it uses less digits than its factorization.

427801747860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36372 (or 36358 counting only the distinct ones).

The product of its (nonzero) digits is 4214784, while the sum is 54.

The spelling of 427801747860 in words is "four hundred twenty-seven billion, eight hundred one million, seven hundred forty-seven thousand, eight hundred sixty".