77243570145211 has 2 divisors, whose sum is σ = 77243570145212. Its totient is φ = 77243570145210.

The previous prime is 77243570145143. The next prime is 77243570145359. The reversal of 77243570145211 is 11254107534277.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 77243570145211 - 2¹⁹ = 77243569620923 is a prime.

It is a super-3 number, since 3×77243570145211³ (a number of 43 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (77243570245211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38621785072605 + 38621785072606.

It is an arithmetic number, because the mean of its divisors is an integer number (38621785072606).

Almost surely, 2^{77243570145211} is an apocalyptic number.

77243570145211 is a deficient number, since it is larger than the sum of its proper divisors (1).

77243570145211 is an equidigital number, since it uses as much as digits as its factorization.

77243570145211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1646400, while the sum is 49.

Adding to 77243570145211 its reverse (11254107534277), we get a palindrome (88497677679488).

The spelling of 77243570145211 in words is "seventy-seven trillion, two hundred forty-three billion, five hundred seventy million, one hundred forty-five thousand, two hundred eleven".