7617565061 has 2 divisors, whose sum is σ = 7617565062. Its totient is φ = 7617565060.

The previous prime is 7617565031. The next prime is 7617565097. The reversal of 7617565061 is 1605657167.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7311105025 + 306460036 = 85505^2 + 17506^2 .

It is an emirp because it is prime and its reverse (1605657167) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7617565061 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7617565001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3808782530 + 3808782531.

It is an arithmetic number, because the mean of its divisors is an integer number (3808782531).

Almost surely, 2^7617565061 is an apocalyptic number.

It is an amenable number.

7617565061 is a deficient number, since it is larger than the sum of its proper divisors (1).

7617565061 is an equidigital number, since it uses as much as digits as its factorization.

7617565061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 264600, while the sum is 44.

The square root of 7617565061 is about 87278.6632631367. The cubic root of 7617565061 is about 1967.6086541897.

The spelling of 7617565061 in words is "seven billion, six hundred seventeen million, five hundred sixty-five thousand, sixty-one".