2678071847 has 4 divisors (see below), whose sum is σ = 2921532936. Its totient is φ = 2434610760.

The previous prime is 2678071843. The next prime is 2678071849. The reversal of 2678071847 is 7481708762.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2678071847 - 2² = 2678071843 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2678071795 and 2678071804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2678071843) 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, 121730528 + ... + 121730549.

It is an arithmetic number, because the mean of its divisors is an integer number (730383234).

Almost surely, 2^2678071847 is an apocalyptic number.

2678071847 is a deficient number, since it is larger than the sum of its proper divisors (243461089).

2678071847 is a wasteful number, since it uses less digits than its factorization.

2678071847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243461088.

The product of its (nonzero) digits is 1053696, while the sum is 50.

The square root of 2678071847 is about 51750.0903090999. The cubic root of 2678071847 is about 1388.6967144984.

The spelling of 2678071847 in words is "two billion, six hundred seventy-eight million, seventy-one thousand, eight hundred forty-seven".