42056787648 has 28 divisors (see below), whose sum is σ = 111275251160. Its totient is φ = 14018929152.

The previous prime is 42056787629. The next prime is 42056787671. The reversal of 42056787648 is 84678765024.

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 3 ways as a sum of consecutive naturals, for example, 109522693 + ... + 109523076.

Almost surely, 2^42056787648 is an apocalyptic number.

42056787648 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

42056787648 is an abundant number, since it is smaller than the sum of its proper divisors (69218463512).

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

42056787648 is a wasteful number, since it uses less digits than its factorization.

42056787648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219045784 (or 219045774 counting only the distinct ones).

The product of its (nonzero) digits is 18063360, while the sum is 57.

The spelling of 42056787648 in words is "forty-two billion, fifty-six million, seven hundred eighty-seven thousand, six hundred forty-eight".