2667878813 has 16 divisors (see below), whose sum is σ = 2852720640. Its totient is φ = 2489143536.

The previous prime is 2667878791. The next prime is 2667878819. The reversal of 2667878813 is 3188787662.

It is a happy number.

2667878813 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2667878813 - 2¹⁶ = 2667813277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2667878819) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 327848 + ... + 335886.

It is an arithmetic number, because the mean of its divisors is an integer number (178295040).

Almost surely, 2^2667878813 is an apocalyptic number.

2667878813 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

2667878813 is a deficient number, since it is larger than the sum of its proper divisors (184841827).

2667878813 is a wasteful number, since it uses less digits than its factorization.

2667878813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8416.

The product of its digits is 5419008, while the sum is 56.

The square root of 2667878813 is about 51651.5131724134. The cubic root of 2667878813 is about 1386.9326307048.

The spelling of 2667878813 in words is "two billion, six hundred sixty-seven million, eight hundred seventy-eight thousand, eight hundred thirteen".