427187869108 has 144 divisors (see below), whose sum is σ = 1031616722304. Its totient is φ = 149479810560.

The previous prime is 427187869067. The next prime is 427187869127. The reversal of 427187869108 is 801968781724.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5442510 + ... + 5520442.

It is an arithmetic number, because the mean of its divisors is an integer number (7164005016).

Almost surely, 2^427187869108 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 427187869108, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (515808361152).

427187869108 is an abundant number, since it is smaller than the sum of its proper divisors (604428853196).

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

427187869108 is a wasteful number, since it uses less digits than its factorization.

427187869108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78042 (or 78003 counting only the distinct ones).

The product of its (nonzero) digits is 10838016, while the sum is 61.

The spelling of 427187869108 in words is "four hundred twenty-seven billion, one hundred eighty-seven million, eight hundred sixty-nine thousand, one hundred eight".