4272645778 has 16 divisors (see below), whose sum is σ = 6437075544. Its totient is φ = 2126966400.

The previous prime is 4272645763. The next prime is 4272645799. The reversal of 4272645778 is 8775462724.

It can be written as a sum of positive squares in 4 ways, for example, as 2026170169 + 2246475609 = 45013^2 + 47397^2 .

It is a super-2 number, since 2×4272645778² = 36511003888522450568, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1051126 + ... + 1055182.

Almost surely, 2^4272645778 is an apocalyptic number.

4272645778 is a deficient number, since it is larger than the sum of its proper divisors (2164429766).

4272645778 is a wasteful number, since it uses less digits than its factorization.

4272645778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6237.

The product of its digits is 5268480, while the sum is 52.

The square root of 4272645778 is about 65365.4784882663. The cubic root of 4272645778 is about 1622.6778069197.

The spelling of 4272645778 in words is "four billion, two hundred seventy-two million, six hundred forty-five thousand, seven hundred seventy-eight".