6171877634513 has 2 divisors, whose sum is σ = 6171877634514. Its totient is φ = 6171877634512.

The previous prime is 6171877634477. The next prime is 6171877634519. The reversal of 6171877634513 is 3154367781716.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5535611372944 + 636266261569 = 2352788^2 + 797663^2 .

It is a cyclic number.

It is not a de Polignac number, because 6171877634513 - 2¹⁰ = 6171877633489 is a prime.

It is not a weakly prime, because it can be changed into another prime (6171877634519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3085938817256 + 3085938817257.

It is an arithmetic number, because the mean of its divisors is an integer number (3085938817257).

Almost surely, 2^{6171877634513} is an apocalyptic number.

It is an amenable number.

6171877634513 is a deficient number, since it is larger than the sum of its proper divisors (1).

6171877634513 is an equidigital number, since it uses as much as digits as its factorization.

6171877634513 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17781120, while the sum is 59.

The spelling of 6171877634513 in words is "six trillion, one hundred seventy-one billion, eight hundred seventy-seven million, six hundred thirty-four thousand, five hundred thirteen".