427142687488 has 72 divisors (see below), whose sum is σ = 931383887616. Its totient is φ = 193893504000.

The previous prime is 427142687341. The next prime is 427142687527. The reversal of 427142687488 is 884786241724.

It is a happy number.

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, 1990213 + ... + 2194363.

It is an arithmetic number, because the mean of its divisors is an integer number (12935887328).

Almost surely, 2^427142687488 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 427142687488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (465691943808).

427142687488 is an abundant number, since it is smaller than the sum of its proper divisors (504241200128).

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

427142687488 is a wasteful number, since it uses less digits than its factorization.

427142687488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204921 (or 204907 counting only the distinct ones).

The product of its digits is 38535168, while the sum is 61.

The spelling of 427142687488 in words is "four hundred twenty-seven billion, one hundred forty-two million, six hundred eighty-seven thousand, four hundred eighty-eight".