775780574993 has 2 divisors, whose sum is σ = 775780574994. Its totient is φ = 775780574992.

The previous prime is 775780574981. The next prime is 775780575023. The reversal of 775780574993 is 399475087577.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 660565813504 + 115214761489 = 812752^2 + 339433^2 .

It is a cyclic number.

It is not a de Polignac number, because 775780574993 - 2¹⁶ = 775780509457 is a prime.

It is not a weakly prime, because it can be changed into another prime (775780574593) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 387890287496 + 387890287497.

It is an arithmetic number, because the mean of its divisors is an integer number (387890287497).

Almost surely, 2^775780574993 is an apocalyptic number.

It is an amenable number.

775780574993 is a deficient number, since it is larger than the sum of its proper divisors (1).

775780574993 is an equidigital number, since it uses as much as digits as its factorization.

775780574993 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 466754400, while the sum is 71.

The spelling of 775780574993 in words is "seven hundred seventy-five billion, seven hundred eighty million, five hundred seventy-four thousand, nine hundred ninety-three".