2678678603 has 4 divisors (see below), whose sum is σ = 2751075360. Its totient is φ = 2606281848.

The previous prime is 2678678599. The next prime is 2678678621. The reversal of 2678678603 is 3068768762.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3068768762 = 2 ⋅1534384381.

It is a cyclic number.

It is not a de Polignac number, because 2678678603 - 2² = 2678678599 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2678678803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36198323 + ... + 36198396.

It is an arithmetic number, because the mean of its divisors is an integer number (687768840).

Almost surely, 2^2678678603 is an apocalyptic number.

2678678603 is a deficient number, since it is larger than the sum of its proper divisors (72396757).

2678678603 is an equidigital number, since it uses as much as digits as its factorization.

2678678603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72396756.

The product of its (nonzero) digits is 4064256, while the sum is 53.

The square root of 2678678603 is about 51755.9523436677. The cubic root of 2678678603 is about 1388.8015830364.

The spelling of 2678678603 in words is "two billion, six hundred seventy-eight million, six hundred seventy-eight thousand, six hundred three".