42172842810527 has 32 divisors (see below), whose sum is σ = 49906349472000. Its totient is φ = 35341894429920.

The previous prime is 42172842810517. The next prime is 42172842810533. The reversal of 42172842810527 is 72501824827124.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-42172842810527 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42172842810517) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16678724 + ... + 19040102.

It is an arithmetic number, because the mean of its divisors is an integer number (1559573421000).

Almost surely, 2^{42172842810527} is an apocalyptic number.

42172842810527 is a deficient number, since it is larger than the sum of its proper divisors (7733506661473).

42172842810527 is a wasteful number, since it uses less digits than its factorization.

42172842810527 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2362168 (or 2362142 counting only the distinct ones).

The product of its (nonzero) digits is 4014080, while the sum is 53.

The spelling of 42172842810527 in words is "forty-two trillion, one hundred seventy-two billion, eight hundred forty-two million, eight hundred ten thousand, five hundred twenty-seven".