42426642664 has 64 divisors (see below), whose sum is σ = 91244684160. Its totient is φ = 18116904960.

The previous prime is 42426642589. The next prime is 42426642707. The reversal of 42426642664 is 46624662424.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23874544 + ... + 23876320.

It is an arithmetic number, because the mean of its divisors is an integer number (1425698190).

Almost surely, 2^42426642664 is an apocalyptic number.

It is an amenable number.

42426642664 is an abundant number, since it is smaller than the sum of its proper divisors (48818041496).

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

42426642664 is a wasteful number, since it uses less digits than its factorization.

42426642664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3098 (or 3094 counting only the distinct ones).

The product of its digits is 2654208, while the sum is 46.

The spelling of 42426642664 in words is "forty-two billion, four hundred twenty-six million, six hundred forty-two thousand, six hundred sixty-four".