42846815994 has 16 divisors (see below), whose sum is σ = 85952529120. Its totient is φ = 14239122480.

The previous prime is 42846815993. The next prime is 42846816007. The reversal of 42846815994 is 49951864824.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (42846815993) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 10785229 + ... + 10789200.

It is an arithmetic number, because the mean of its divisors is an integer number (5372033070).

Almost surely, 2^42846815994 is an apocalyptic number.

42846815994 is an abundant number, since it is smaller than the sum of its proper divisors (43105713126).

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

42846815994 is a wasteful number, since it uses less digits than its factorization.

42846815994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21574765.

The product of its digits is 19906560, while the sum is 60.

The spelling of 42846815994 in words is "forty-two billion, eight hundred forty-six million, eight hundred fifteen thousand, nine hundred ninety-four".