77110405471523 has 2 divisors, whose sum is σ = 77110405471524. Its totient is φ = 77110405471522.

The previous prime is 77110405471439. The next prime is 77110405471559. The reversal of 77110405471523 is 32517450401177.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 77110405471523 - 2¹⁶ = 77110405405987 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (77110405471223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38555202735761 + 38555202735762.

It is an arithmetic number, because the mean of its divisors is an integer number (38555202735762).

Almost surely, 2^{77110405471523} is an apocalyptic number.

77110405471523 is a deficient number, since it is larger than the sum of its proper divisors (1).

77110405471523 is an equidigital number, since it uses as much as digits as its factorization.

77110405471523 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 823200, while the sum is 47.

The spelling of 77110405471523 in words is "seventy-seven trillion, one hundred ten billion, four hundred five million, four hundred seventy-one thousand, five hundred twenty-three".