2768128136 has 16 divisors (see below), whose sum is σ = 5357667840. Its totient is φ = 1339416720.

The previous prime is 2768128133. The next prime is 2768128247. The reversal of 2768128136 is 6318218672.

It is not an unprimeable number, because it can be changed into a prime (2768128133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5580656 + ... + 5581151.

It is an arithmetic number, because the mean of its divisors is an integer number (334854240).

Almost surely, 2^2768128136 is an apocalyptic number.

It is an amenable number.

2768128136 is a deficient number, since it is larger than the sum of its proper divisors (2589539704).

2768128136 is a wasteful number, since it uses less digits than its factorization.

2768128136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11161844 (or 11161840 counting only the distinct ones).

The product of its digits is 193536, while the sum is 44.

The square root of 2768128136 is about 52613.0034877311. The cubic root of 2768128136 is about 1404.0914556919.

The spelling of 2768128136 in words is "two billion, seven hundred sixty-eight million, one hundred twenty-eight thousand, one hundred thirty-six".