42525638660 has 24 divisors (see below), whose sum is σ = 89313183960. Its totient is φ = 17008475904.

The previous prime is 42525638641. The next prime is 42525638689. The reversal of 42525638660 is 6683652524.

It can be written as a sum of positive squares in 4 ways, for example, as 21125459716 + 21400178944 = 145346^2 + 146288^2 .

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, 93962 + ... + 306398.

It is an arithmetic number, because the mean of its divisors is an integer number (3721382665).

Almost surely, 2^42525638660 is an apocalyptic number.

It is an amenable number.

42525638660 is an abundant number, since it is smaller than the sum of its proper divisors (46787545300).

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

42525638660 is a wasteful number, since it uses less digits than its factorization.

42525638660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222455 (or 222453 counting only the distinct ones).

The product of its (nonzero) digits is 2073600, while the sum is 47.

The spelling of 42525638660 in words is "forty-two billion, five hundred twenty-five million, six hundred thirty-eight thousand, six hundred sixty".