6172758061 has 2 divisors, whose sum is σ = 6172758062. Its totient is φ = 6172758060.

The previous prime is 6172758043. The next prime is 6172758071. The reversal of 6172758061 is 1608572716.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5295472900 + 877285161 = 72770^2 + 29619^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6172758061 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6172757999 and 6172758017.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6172758071) 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, 3086379030 + 3086379031.

It is an arithmetic number, because the mean of its divisors is an integer number (3086379031).

Almost surely, 2^6172758061 is an apocalyptic number.

It is an amenable number.

6172758061 is a deficient number, since it is larger than the sum of its proper divisors (1).

6172758061 is an equidigital number, since it uses as much as digits as its factorization.

6172758061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 141120, while the sum is 43.

The square root of 6172758061 is about 78566.9018162228. The cubic root of 6172758061 is about 1834.3959593471.

The spelling of 6172758061 in words is "six billion, one hundred seventy-two million, seven hundred fifty-eight thousand, sixty-one".