2661795629 has 2 divisors, whose sum is σ = 2661795630. Its totient is φ = 2661795628.

The previous prime is 2661795611. The next prime is 2661795659. The reversal of 2661795629 is 9265971662.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1438684900 + 1223110729 = 37930^2 + 34973^2 .

It is a cyclic number.

It is not a de Polignac number, because 2661795629 - 2²⁰ = 2660747053 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2661795659) 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, 1330897814 + 1330897815.

It is an arithmetic number, because the mean of its divisors is an integer number (1330897815).

Almost surely, 2^2661795629 is an apocalyptic number.

It is an amenable number.

2661795629 is a deficient number, since it is larger than the sum of its proper divisors (1).

2661795629 is an equidigital number, since it uses as much as digits as its factorization.

2661795629 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2449440, while the sum is 53.

The square root of 2661795629 is about 51592.5927726064. The cubic root of 2661795629 is about 1385.8776868520.

The spelling of 2661795629 in words is "two billion, six hundred sixty-one million, seven hundred ninety-five thousand, six hundred twenty-nine".