42105787523872 has 48 divisors (see below), whose sum is σ = 87773163885792. Its totient is φ = 19814223447040.

The previous prime is 42105787523869. The next prime is 42105787523873. The reversal of 42105787523872 is 27832578750124.

It is a self number, because there is not a number n which added to its sum of digits gives 42105787523872.

It is not an unprimeable number, because it can be changed into a prime (42105787523873) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43697847 + ... + 44651017.

It is an arithmetic number, because the mean of its divisors is an integer number (1828607580954).

Almost surely, 2^{42105787523872} is an apocalyptic number.

It is an amenable number.

42105787523872 is an abundant number, since it is smaller than the sum of its proper divisors (45667376361920).

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

42105787523872 is a wasteful number, since it uses less digits than its factorization.

42105787523872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1034401 (or 1034393 counting only the distinct ones).

The product of its (nonzero) digits is 52684800, while the sum is 61.

The spelling of 42105787523872 in words is "forty-two trillion, one hundred five billion, seven hundred eighty-seven million, five hundred twenty-three thousand, eight hundred seventy-two".