42228737568 has 72 divisors (see below), whose sum is σ = 120216361356. Its totient is φ = 14061196800.

The previous prime is 42228737543. The next prime is 42228737581. The reversal of 42228737568 is 86573782224.

42228737568 is a `hidden beast` number, since 4 + 2 + 2 + 2 + 8 + 73 + 7 + 568 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 38583959184 + 3644778384 = 196428^2 + 60372^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 193098 + ... + 348918.

Almost surely, 2^42228737568 is an apocalyptic number.

42228737568 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

42228737568 is an abundant number, since it is smaller than the sum of its proper divisors (77987623788).

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

42228737568 is a wasteful number, since it uses less digits than its factorization.

42228737568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156778 (or 156767 counting only the distinct ones).

The product of its digits is 9031680, while the sum is 54.

The spelling of 42228737568 in words is "forty-two billion, two hundred twenty-eight million, seven hundred thirty-seven thousand, five hundred sixty-eight".