42043336640 has 56 divisors (see below), whose sum is σ = 100136797440. Its totient is φ = 16813790208.

The previous prime is 42043336627. The next prime is 42043336679. The reversal of 42043336640 is 4663334024.

It is a self number, because there is not a number n which added to its sum of digits gives 42043336640.

It is a congruent 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 7 ways as a sum of consecutive naturals, for example, 1934474 + ... + 1956086.

Almost surely, 2^42043336640 is an apocalyptic number.

42043336640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42043336640 is an abundant number, since it is smaller than the sum of its proper divisors (58093460800).

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

42043336640 is a wasteful number, since it uses less digits than its factorization.

42043336640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27709 (or 27699 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 35.

The spelling of 42043336640 in words is "forty-two billion, forty-three million, three hundred thirty-six thousand, six hundred forty".