775525416493 has 2 divisors, whose sum is σ = 775525416494. Its totient is φ = 775525416492.

The previous prime is 775525416481. The next prime is 775525416503. The reversal of 775525416493 is 394614525577.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 418449853129 + 357075563364 = 646877^2 + 597558^2 .

It is a cyclic number.

It is not a de Polignac number, because 775525416493 - 2⁵ = 775525416461 is a prime.

It is a super-2 number, since 2×775525416493² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (775525416433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 387762708246 + 387762708247.

It is an arithmetic number, because the mean of its divisors is an integer number (387762708247).

Almost surely, 2^775525416493 is an apocalyptic number.

It is an amenable number.

775525416493 is a deficient number, since it is larger than the sum of its proper divisors (1).

775525416493 is an equidigital number, since it uses as much as digits as its factorization.

775525416493 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 31752000, while the sum is 58.

The spelling of 775525416493 in words is "seven hundred seventy-five billion, five hundred twenty-five million, four hundred sixteen thousand, four hundred ninety-three".