42020629656 has 16 divisors (see below), whose sum is σ = 105051574200. Its totient is φ = 14006876544.

The previous prime is 42020629633. The next prime is 42020629667. The reversal of 42020629656 is 65692602024.

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 3 ways as a sum of consecutive naturals, for example, 875429761 + ... + 875429808.

Almost surely, 2^42020629656 is an apocalyptic number.

It is an amenable number.

42020629656 is an abundant number, since it is smaller than the sum of its proper divisors (63030944544).

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

42020629656 is a wasteful number, since it uses less digits than its factorization.

42020629656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1750859578 (or 1750859574 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 42.

The spelling of 42020629656 in words is "forty-two billion, twenty million, six hundred twenty-nine thousand, six hundred fifty-six".