755789864681 has 2 divisors, whose sum is σ = 755789864682. Its totient is φ = 755789864680.

The previous prime is 755789864611. The next prime is 755789864741. The reversal of 755789864681 is 186468987557.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 495953977600 + 259835887081 = 704240^2 + 509741^2 .

It is a cyclic number.

It is not a de Polignac number, because 755789864681 - 2¹⁸ = 755789602537 is a prime.

It is a super-2 number, since 2×755789864681² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 755789864599 and 755789864608.

It is not a weakly prime, because it can be changed into another prime (755789864611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 377894932340 + 377894932341.

It is an arithmetic number, because the mean of its divisors is an integer number (377894932341).

Almost surely, 2^755789864681 is an apocalyptic number.

It is an amenable number.

755789864681 is a deficient number, since it is larger than the sum of its proper divisors (1).

755789864681 is an equidigital number, since it uses as much as digits as its factorization.

755789864681 is an evil number, because the sum of its binary digits is even.

The product of its digits is 812851200, while the sum is 74.

The spelling of 755789864681 in words is "seven hundred fifty-five billion, seven hundred eighty-nine million, eight hundred sixty-four thousand, six hundred eighty-one".