6872855266 has 16 divisors (see below), whose sum is σ = 10441916856. Its totient is φ = 3392395776.

The previous prime is 6872855141. The next prime is 6872855267. The reversal of 6872855266 is 6625582786.

It can be written as a sum of positive squares in 4 ways, for example, as 6071682241 + 801173025 = 77921^2 + 28305^2 .

It is a super-2 number, since 2×6872855266² = 94472279014767861512, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6872855267) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32400 + ... + 121636.

Almost surely, 2^6872855266 is an apocalyptic number.

6872855266 is a deficient number, since it is larger than the sum of its proper divisors (3569061590).

6872855266 is a wasteful number, since it uses less digits than its factorization.

6872855266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89733.

The product of its digits is 9676800, while the sum is 55.

The square root of 6872855266 is about 82902.6855174186. The cubic root of 6872855266 is about 1901.2784808112.

The spelling of 6872855266 in words is "six billion, eight hundred seventy-two million, eight hundred fifty-five thousand, two hundred sixty-six".