4268486781 has 32 divisors (see below), whose sum is σ = 7168560000. Its totient is φ = 2488506624.

The previous prime is 4268486779. The next prime is 4268486797. The reversal of 4268486781 is 1876848624.

4268486781 is a `hidden beast` number, since 426 + 84 + 8 + 67 + 81 = 666.

It is not a de Polignac number, because 4268486781 - 2¹ = 4268486779 is a prime.

It is a super-3 number, since 3×4268486781³ (a number of 30 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4268486711) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 313356 + ... + 326693.

It is an arithmetic number, because the mean of its divisors is an integer number (224017500).

Almost surely, 2^4268486781 is an apocalyptic number.

It is an amenable number.

4268486781 is a deficient number, since it is larger than the sum of its proper divisors (2900073219).

4268486781 is a wasteful number, since it uses less digits than its factorization.

4268486781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 640090 (or 640084 counting only the distinct ones).

The product of its digits is 4128768, while the sum is 54.

The square root of 4268486781 is about 65333.6573367816. The cubic root of 4268486781 is about 1622.1511306789.

The spelling of 4268486781 in words is "four billion, two hundred sixty-eight million, four hundred eighty-six thousand, seven hundred eighty-one".