262640226042 has 12 divisors (see below), whose sum is σ = 569053823130. Its totient is φ = 87546742008.

The previous prime is 262640226041. The next prime is 262640226083. The reversal of 262640226042 is 240622046262.

262640226042 is a `hidden beast` number, since 2 + 6 + 2 + 6 + 40 + 2 + 2 + 604 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 260690915241 + 1949310801 = 510579^2 + 44151^2 .

It is a junction number, because it is equal to n+sod(n) for n = 262640225988 and 262640226006.

It is not an unprimeable number, because it can be changed into a prime (262640226041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7295561817 + ... + 7295561852.

Almost surely, 2^262640226042 is an apocalyptic number.

262640226042 is an abundant number, since it is smaller than the sum of its proper divisors (306413597088).

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

262640226042 is a wasteful number, since it uses less digits than its factorization.

262640226042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14591123677 (or 14591123674 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 36.

The spelling of 262640226042 in words is "two hundred sixty-two billion, six hundred forty million, two hundred twenty-six thousand, forty-two".