42256253186 has 24 divisors (see below), whose sum is σ = 73796995980. Its totient is φ = 18094067712.

The previous prime is 42256253183. The next prime is 42256253239. The reversal of 42256253186 is 68135265224.

It can be written as a sum of positive squares in 2 ways, for example, as 42109092025 + 147161161 = 205205^2 + 12131^2 .

It is not an unprimeable number, because it can be changed into a prime (42256253183) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 73991 + ... + 299978.

Almost surely, 2^42256253186 is an apocalyptic number.

42256253186 is a deficient number, since it is larger than the sum of its proper divisors (31540742794).

42256253186 is a wasteful number, since it uses less digits than its factorization.

42256253186 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375138 (or 375131 counting only the distinct ones).

The product of its digits is 691200, while the sum is 44.

The spelling of 42256253186 in words is "forty-two billion, two hundred fifty-six million, two hundred fifty-three thousand, one hundred eighty-six".