77457343211 has 2 divisors, whose sum is σ = 77457343212. Its totient is φ = 77457343210.

The previous prime is 77457343181. The next prime is 77457343217. The reversal of 77457343211 is 11234375477.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-77457343211 is a prime.

It is not a weakly prime, because it can be changed into another prime (77457343217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38728671605 + 38728671606.

It is an arithmetic number, because the mean of its divisors is an integer number (38728671606).

Almost surely, 2^77457343211 is an apocalyptic number.

77457343211 is a deficient number, since it is larger than the sum of its proper divisors (1).

77457343211 is an equidigital number, since it uses as much as digits as its factorization.

77457343211 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 493920, while the sum is 44.

The spelling of 77457343211 in words is "seventy-seven billion, four hundred fifty-seven million, three hundred forty-three thousand, two hundred eleven".