42550582986 has 32 divisors (see below), whose sum is σ = 94590244800. Its totient is φ = 14178518640.

The previous prime is 42550582969. The next prime is 42550582993. The reversal of 42550582986 is 68928505524.

42550582986 is a `hidden beast` number, since 4 + 2 + 5 + 50 + 582 + 9 + 8 + 6 = 666.

It is a super-2 number, since 2×42550582986² (a number of 22 digits) contains 22 as substring.

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

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16785 + ... + 292203.

It is an arithmetic number, because the mean of its divisors is an integer number (2955945150).

Almost surely, 2^42550582986 is an apocalyptic number.

42550582986 is an abundant number, since it is smaller than the sum of its proper divisors (52039661814).

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

42550582986 is a wasteful number, since it uses less digits than its factorization.

42550582986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278291 (or 278285 counting only the distinct ones).

The product of its (nonzero) digits is 6912000, while the sum is 54.

The spelling of 42550582986 in words is "forty-two billion, five hundred fifty million, five hundred eighty-two thousand, nine hundred eighty-six".