427742518064 has 80 divisors (see below), whose sum is σ = 906380845056. Its totient is φ = 194674099200.

The previous prime is 427742518039. The next prime is 427742518069. The reversal of 427742518064 is 460815247724.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (427742518069) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14040929 + ... + 14071359.

Almost surely, 2^427742518064 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 427742518064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (453190422528).

427742518064 is an abundant number, since it is smaller than the sum of its proper divisors (478638326992).

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

427742518064 is a wasteful number, since it uses less digits than its factorization.

427742518064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32154 (or 32148 counting only the distinct ones).

The product of its (nonzero) digits is 3010560, while the sum is 50.

The spelling of 427742518064 in words is "four hundred twenty-seven billion, seven hundred forty-two million, five hundred eighteen thousand, sixty-four".