4081263266 has 4 divisors (see below), whose sum is σ = 6121894902. Its totient is φ = 2040631632.

The previous prime is 4081263239. The next prime is 4081263269. The reversal of 4081263266 is 6623621804.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 3355769041 + 725494225 = 57929^2 + 26935^2 .

It is not an unprimeable number, because it can be changed into a prime (4081263269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1020315815 + ... + 1020315818.

Almost surely, 2^4081263266 is an apocalyptic number.

4081263266 is a deficient number, since it is larger than the sum of its proper divisors (2040631636).

4081263266 is a wasteful number, since it uses less digits than its factorization.

4081263266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2040631635.

The product of its (nonzero) digits is 82944, while the sum is 38.

The square root of 4081263266 is about 63884.7655235581. The cubic root of 4081263266 is about 1598.0788485861.

The spelling of 4081263266 in words is "four billion, eighty-one million, two hundred sixty-three thousand, two hundred sixty-six".