2868128068 has 36 divisors (see below), whose sum is σ = 5451039300. Its totient is φ = 1319849856.

The previous prime is 2868128059. The next prime is 2868128077. The reversal of 2868128068 is 8608218682.

It is an interprime number because it is at equal distance from previous prime (2868128059) and next prime (2868128077).

It can be written as a sum of positive squares in 6 ways, for example, as 789497604 + 2078630464 = 28098^2 + 45592^2 .

It is a super-2 number, since 2×2868128068² = 16452317228898825248, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 229846 + ... + 242002.

Almost surely, 2^2868128068 is an apocalyptic number.

It is an amenable number.

2868128068 is a deficient number, since it is larger than the sum of its proper divisors (2582911232).

2868128068 is a wasteful number, since it uses less digits than its factorization.

2868128068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12536 (or 12521 counting only the distinct ones).

The product of its (nonzero) digits is 589824, while the sum is 49.

The square root of 2868128068 is about 53554.9070394114. The cubic root of 2868128068 is about 1420.7996666271.

The spelling of 2868128068 in words is "two billion, eight hundred sixty-eight million, one hundred twenty-eight thousand, sixty-eight".