611217468877 has 2 divisors, whose sum is σ = 611217468878. Its totient is φ = 611217468876.

The previous prime is 611217468821. The next prime is 611217468881. The reversal of 611217468877 is 778864712116.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 601639127716 + 9578341161 = 775654^2 + 97869^2 .

It is a cyclic number.

It is not a de Polignac number, because 611217468877 - 2²³ = 611209080269 is a prime.

It is a super-2 number, since 2×611217468877² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (611217438877) 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, 305608734438 + 305608734439.

It is an arithmetic number, because the mean of its divisors is an integer number (305608734439).

Almost surely, 2^611217468877 is an apocalyptic number.

It is an amenable number.

611217468877 is a deficient number, since it is larger than the sum of its proper divisors (1).

611217468877 is an equidigital number, since it uses as much as digits as its factorization.

611217468877 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6322176, while the sum is 58.

The spelling of 611217468877 in words is "six hundred eleven billion, two hundred seventeen million, four hundred sixty-eight thousand, eight hundred seventy-seven".