7661541029 has 2 divisors, whose sum is σ = 7661541030. Its totient is φ = 7661541028.

The previous prime is 7661541007. The next prime is 7661541047. The reversal of 7661541029 is 9201451667.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7077352129 + 584188900 = 84127^2 + 24170^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7661541029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7661541089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3830770514 + 3830770515.

It is an arithmetic number, because the mean of its divisors is an integer number (3830770515).

Almost surely, 2^7661541029 is an apocalyptic number.

It is an amenable number.

7661541029 is a deficient number, since it is larger than the sum of its proper divisors (1).

7661541029 is an equidigital number, since it uses as much as digits as its factorization.

7661541029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 90720, while the sum is 41.

The square root of 7661541029 is about 87530.2292296781. The cubic root of 7661541029 is about 1971.3877060540.

The spelling of 7661541029 in words is "seven billion, six hundred sixty-one million, five hundred forty-one thousand, twenty-nine".