677540247847 has 2 divisors, whose sum is σ = 677540247848. Its totient is φ = 677540247846.

The previous prime is 677540247763. The next prime is 677540247949. The reversal of 677540247847 is 748742045776.

677540247847 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 677540247847 - 2¹¹ = 677540245799 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (677540247547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 338770123923 + 338770123924.

It is an arithmetic number, because the mean of its divisors is an integer number (338770123924).

Almost surely, 2^677540247847 is an apocalyptic number.

677540247847 is a deficient number, since it is larger than the sum of its proper divisors (1).

677540247847 is an equidigital number, since it uses as much as digits as its factorization.

677540247847 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 73758720, while the sum is 61.

The spelling of 677540247847 in words is "six hundred seventy-seven billion, five hundred forty million, two hundred forty-seven thousand, eight hundred forty-seven".