617031130777 has 2 divisors, whose sum is σ = 617031130778. Its totient is φ = 617031130776.

The previous prime is 617031130691. The next prime is 617031130799. The reversal of 617031130777 is 777031130716.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 338984786176 + 278046344601 = 582224^2 + 527301^2 .

It is a cyclic number.

It is not a de Polignac number, because 617031130777 - 2¹⁵ = 617031098009 is a prime.

It is not a weakly prime, because it can be changed into another prime (617031830777) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 308515565388 + 308515565389.

It is an arithmetic number, because the mean of its divisors is an integer number (308515565389).

Almost surely, 2^617031130777 is an apocalyptic number.

It is an amenable number.

617031130777 is a deficient number, since it is larger than the sum of its proper divisors (1).

617031130777 is an equidigital number, since it uses as much as digits as its factorization.

617031130777 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 129654, while the sum is 43.

The spelling of 617031130777 in words is "six hundred seventeen billion, thirty-one million, one hundred thirty thousand, seven hundred seventy-seven".