42987334856 has 16 divisors (see below), whose sum is σ = 80694662400. Its totient is φ = 21468758224.

The previous prime is 42987334853. The next prime is 42987334861. The reversal of 42987334856 is 65843378924.

It is a junction number, because it is equal to n+sod(n) for n = 42987334795 and 42987334804.

It is not an unprimeable number, because it can be changed into a prime (42987334853) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3106316 + ... + 3120123.

It is an arithmetic number, because the mean of its divisors is an integer number (5043416400).

Almost surely, 2^42987334856 is an apocalyptic number.

It is an amenable number.

42987334856 is a deficient number, since it is larger than the sum of its proper divisors (37707327544).

42987334856 is a wasteful number, since it uses less digits than its factorization.

42987334856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6227308 (or 6227304 counting only the distinct ones).

The product of its digits is 34836480, while the sum is 59.

The spelling of 42987334856 in words is "forty-two billion, nine hundred eighty-seven million, three hundred thirty-four thousand, eight hundred fifty-six".