42261325564 has 12 divisors (see below), whose sum is σ = 74970434224. Its totient is φ = 20841201504.

The previous prime is 42261325549. The next prime is 42261325619. The reversal of 42261325564 is 46552316224.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72364992 + ... + 72365575.

Almost surely, 2^42261325564 is an apocalyptic number.

It is an amenable number.

42261325564 is a deficient number, since it is larger than the sum of its proper divisors (32709108660).

42261325564 is a wasteful number, since it uses less digits than its factorization.

42261325564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144730644 (or 144730642 counting only the distinct ones).

The product of its digits is 345600, while the sum is 40.

The spelling of 42261325564 in words is "forty-two billion, two hundred sixty-one million, three hundred twenty-five thousand, five hundred sixty-four".