42642486556 has 12 divisors (see below), whose sum is σ = 76212103968. Its totient is φ = 20867599712.

The previous prime is 42642486547. The next prime is 42642486563. The reversal of 42642486556 is 65568424624.

It is a super-2 number, since 2×42642486556² (a number of 22 digits) contains 22 as substring.

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, 113410681 + ... + 113411056.

It is an arithmetic number, because the mean of its divisors is an integer number (6351008664).

Almost surely, 2^42642486556 is an apocalyptic number.

It is an amenable number.

42642486556 is a deficient number, since it is larger than the sum of its proper divisors (33569617412).

42642486556 is a wasteful number, since it uses less digits than its factorization.

42642486556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226821788 (or 226821786 counting only the distinct ones).

The product of its digits is 11059200, while the sum is 52.

The spelling of 42642486556 in words is "forty-two billion, six hundred forty-two million, four hundred eighty-six thousand, five hundred fifty-six".