42512665508 has 12 divisors (see below), whose sum is σ = 74680045440. Its totient is φ = 21175509672.

The previous prime is 42512665501. The next prime is 42512665519. The reversal of 42512665508 is 80556621524.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (42512665501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20204588 + ... + 20206691.

It is an arithmetic number, because the mean of its divisors is an integer number (6223337120).

Almost surely, 2^42512665508 is an apocalyptic number.

It is an amenable number.

42512665508 is a deficient number, since it is larger than the sum of its proper divisors (32167379932).

42512665508 is a wasteful number, since it uses less digits than its factorization.

42512665508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40411546 (or 40411544 counting only the distinct ones).

The product of its (nonzero) digits is 576000, while the sum is 44.

The spelling of 42512665508 in words is "forty-two billion, five hundred twelve million, six hundred sixty-five thousand, five hundred eight".