4027268781 has 16 divisors (see below), whose sum is σ = 5982081600. Its totient is φ = 2677755024.

The previous prime is 4027268761. The next prime is 4027268803. The reversal of 4027268781 is 1878627204.

It is not a de Polignac number, because 4027268781 - 2⁹ = 4027268269 is a prime.

It is a super-2 number, since 2×4027268781² = 32437787668834451922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4027268731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 186546 + ... + 207011.

It is an arithmetic number, because the mean of its divisors is an integer number (373880100).

Almost surely, 2^4027268781 is an apocalyptic number.

It is an amenable number.

4027268781 is a deficient number, since it is larger than the sum of its proper divisors (1954812819).

4027268781 is a wasteful number, since it uses less digits than its factorization.

4027268781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 393945 (or 393939 counting only the distinct ones).

The product of its (nonzero) digits is 301056, while the sum is 45.

The square root of 4027268781 is about 63460.7656824278. The cubic root of 4027268781 is about 1591.0000934968. Note that the first 4 decimals are identical.

It can be divided in two parts, 4027268 and 781, that added together give a square (4028049 = 2007²).

The spelling of 4027268781 in words is "four billion, twenty-seven million, two hundred sixty-eight thousand, seven hundred eighty-one".