776036535481 has 2 divisors, whose sum is σ = 776036535482. Its totient is φ = 776036535480.

The previous prime is 776036535377. The next prime is 776036535523. The reversal of 776036535481 is 184535630677.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 772913514025 + 3123021456 = 879155^2 + 55884^2 .

It is a cyclic number.

It is not a de Polignac number, because 776036535481 - 2³⁷ = 638597582009 is a prime.

It is a super-2 number, since 2×776036535481² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (776036538481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 388018267740 + 388018267741.

It is an arithmetic number, because the mean of its divisors is an integer number (388018267741).

Almost surely, 2^776036535481 is an apocalyptic number.

It is an amenable number.

776036535481 is a deficient number, since it is larger than the sum of its proper divisors (1).

776036535481 is an equidigital number, since it uses as much as digits as its factorization.

776036535481 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12700800, while the sum is 55.

The spelling of 776036535481 in words is "seven hundred seventy-six billion, thirty-six million, five hundred thirty-five thousand, four hundred eighty-one".