42780125652 has 24 divisors (see below), whose sum is σ = 108894865632. Its totient is φ = 12963674400.

The previous prime is 42780125627. The next prime is 42780125693. The reversal of 42780125652 is 25652108724.

It is a congruent 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, 162045799 + ... + 162046062.

It is an arithmetic number, because the mean of its divisors is an integer number (4537286068).

Almost surely, 2^42780125652 is an apocalyptic number.

It is an amenable number.

42780125652 is an abundant number, since it is smaller than the sum of its proper divisors (66114739980).

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

42780125652 is a wasteful number, since it uses less digits than its factorization.

42780125652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324091879 (or 324091877 counting only the distinct ones).

The product of its (nonzero) digits is 268800, while the sum is 42.

The spelling of 42780125652 in words is "forty-two billion, seven hundred eighty million, one hundred twenty-five thousand, six hundred fifty-two".