43677755777713 has 2 divisors, whose sum is σ = 43677755777714. Its totient is φ = 43677755777712.

The previous prime is 43677755777563. The next prime is 43677755777717. The reversal of 43677755777713 is 31777755777634.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 31812679514529 + 11865076263184 = 5640273^2 + 3444572^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43677755777713 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 43677755777713.

It is not a weakly prime, because it can be changed into another prime (43677755777717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21838877888856 + 21838877888857.

It is an arithmetic number, because the mean of its divisors is an integer number (21838877888857).

Almost surely, 2^{43677755777713} is an apocalyptic number.

It is an amenable number.

43677755777713 is a deficient number, since it is larger than the sum of its proper divisors (1).

43677755777713 is an equidigital number, since it uses as much as digits as its factorization.

43677755777713 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4447132200, while the sum is 76.

The spelling of 43677755777713 in words is "forty-three trillion, six hundred seventy-seven billion, seven hundred fifty-five million, seven hundred seventy-seven thousand, seven hundred thirteen".