771713016643 has 2 divisors, whose sum is σ = 771713016644. Its totient is φ = 771713016642.

The previous prime is 771713016629. The next prime is 771713016733. The reversal of 771713016643 is 346610317177.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 771713016643 - 2⁹ = 771713016131 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 771713016593 and 771713016602.

It is not a weakly prime, because it can be changed into another prime (771713016143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 385856508321 + 385856508322.

It is an arithmetic number, because the mean of its divisors is an integer number (385856508322).

Almost surely, 2^771713016643 is an apocalyptic number.

771713016643 is a deficient number, since it is larger than the sum of its proper divisors (1).

771713016643 is an equidigital number, since it uses as much as digits as its factorization.

771713016643 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 444528, while the sum is 46.

The spelling of 771713016643 in words is "seven hundred seventy-one billion, seven hundred thirteen million, sixteen thousand, six hundred forty-three".