5781678347 has 2 divisors, whose sum is σ = 5781678348. Its totient is φ = 5781678346.

The previous prime is 5781678313. The next prime is 5781678373. The reversal of 5781678347 is 7438761875.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 5781678347 - 2¹⁸ = 5781416203 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 5781678292 and 5781678301.

It is not a weakly prime, because it can be changed into another prime (5781671347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2890839173 + 2890839174.

It is an arithmetic number, because the mean of its divisors is an integer number (2890839174).

Almost surely, 2^5781678347 is an apocalyptic number.

5781678347 is a deficient number, since it is larger than the sum of its proper divisors (1).

5781678347 is an equidigital number, since it uses as much as digits as its factorization.

5781678347 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7902720, while the sum is 56.

The square root of 5781678347 is about 76037.3483690745. The cubic root of 5781678347 is about 1794.8079130686.

The spelling of 5781678347 in words is "five billion, seven hundred eighty-one million, six hundred seventy-eight thousand, three hundred forty-seven".