42811187875 has 16 divisors (see below), whose sum is σ = 53681610528. Its totient is φ = 34086612000.

The previous prime is 42811187869. The next prime is 42811187893. The reversal of 42811187875 is 57878111824.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-42811187875 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 785212 + ... + 837961.

It is an arithmetic number, because the mean of its divisors is an integer number (3355100658).

Almost surely, 2^42811187875 is an apocalyptic number.

42811187875 is a deficient number, since it is larger than the sum of its proper divisors (10870422653).

42811187875 is a wasteful number, since it uses less digits than its factorization.

42811187875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1623399 (or 1623389 counting only the distinct ones).

The product of its digits is 1003520, while the sum is 52.

The spelling of 42811187875 in words is "forty-two billion, eight hundred eleven million, one hundred eighty-seven thousand, eight hundred seventy-five".