4268683778 has 4 divisors (see below), whose sum is σ = 6403025670. Its totient is φ = 2134341888.

The previous prime is 4268683777. The next prime is 4268683801. The reversal of 4268683778 is 8773868624.

It is a happy number.

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., 4073885929 + 194797849 = 63827^2 + 13957^2 .

It is a super-3 number, since 3×4268683778³ (a number of 30 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (4268683777) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1067170943 + ... + 1067170946.

Almost surely, 2^4268683778 is an apocalyptic number.

4268683778 is a deficient number, since it is larger than the sum of its proper divisors (2134341892).

4268683778 is a wasteful number, since it uses less digits than its factorization.

4268683778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2134341891.

The product of its digits is 21676032, while the sum is 59.

The square root of 4268683778 is about 65335.1649420127. The cubic root of 4268683778 is about 1622.1760851890.

The spelling of 4268683778 in words is "four billion, two hundred sixty-eight million, six hundred eighty-three thousand, seven hundred seventy-eight".