42175590786 has 160 divisors (see below), whose sum is σ = 111124556928. Its totient is φ = 11753112960.

The previous prime is 42175590767. The next prime is 42175590823. The reversal of 42175590786 is 68709557124.

42175590786 is a `hidden beast` number, since 4 + 2 + 1 + 7 + 559 + 0 + 7 + 86 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 11296176 + ... + 11299908.

Almost surely, 2^42175590786 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42175590786, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55562278464).

42175590786 is an abundant number, since it is smaller than the sum of its proper divisors (68948966142).

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

42175590786 is an frugal number, since it uses more digits than its factorization.

42175590786 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3810 (or 3786 counting only the distinct ones).

The product of its (nonzero) digits is 4233600, while the sum is 54.

The spelling of 42175590786 in words is "forty-two billion, one hundred seventy-five million, five hundred ninety thousand, seven hundred eighty-six".