775458026511131 has 2 divisors, whose sum is σ = 775458026511132. Its totient is φ = 775458026511130.

The previous prime is 775458026511067. The next prime is 775458026511251. The reversal of 775458026511131 is 131115620854577.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 775458026511131 - 2⁶ = 775458026511067 is a prime.

It is a super-2 number, since 2×775458026511131² (a number of 31 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (775458026501131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 387729013255565 + 387729013255566.

It is an arithmetic number, because the mean of its divisors is an integer number (387729013255566).

Almost surely, 2^{775458026511131} is an apocalyptic number.

775458026511131 is a deficient number, since it is larger than the sum of its proper divisors (1).

775458026511131 is an equidigital number, since it uses as much as digits as its factorization.

775458026511131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7056000, while the sum is 56.

The spelling of 775458026511131 in words is "seven hundred seventy-five trillion, four hundred fifty-eight billion, twenty-six million, five hundred eleven thousand, one hundred thirty-one".