42816338925 has 24 divisors (see below), whose sum is σ = 70806822240. Its totient is φ = 22829851200.

The previous prime is 42816338879. The next prime is 42816338963. The reversal of 42816338925 is 52983361824.

It is a happy number.

It is not a de Polignac number, because 42816338925 - 2¹² = 42816334829 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 252586 + ... + 386564.

It is an arithmetic number, because the mean of its divisors is an integer number (2950284260).

Almost surely, 2^42816338925 is an apocalyptic number.

It is an amenable number.

42816338925 is a deficient number, since it is larger than the sum of its proper divisors (27990483315).

42816338925 is a wasteful number, since it uses less digits than its factorization.

42816338925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138253 (or 138248 counting only the distinct ones).

The product of its digits is 2488320, while the sum is 51.

The spelling of 42816338925 in words is "forty-two billion, eight hundred sixteen million, three hundred thirty-eight thousand, nine hundred twenty-five".