2661767051 has 2 divisors, whose sum is σ = 2661767052. Its totient is φ = 2661767050.

The previous prime is 2661767041. The next prime is 2661767063. The reversal of 2661767051 is 1507671662.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2661767051 - 2¹⁰ = 2661766027 is a prime.

It is not a weakly prime, because it can be changed into another prime (2661767011) 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, 1330883525 + 1330883526.

It is an arithmetic number, because the mean of its divisors is an integer number (1330883526).

Almost surely, 2^2661767051 is an apocalyptic number.

2661767051 is a deficient number, since it is larger than the sum of its proper divisors (1).

2661767051 is an equidigital number, since it uses as much as digits as its factorization.

2661767051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 105840, while the sum is 41.

The square root of 2661767051 is about 51592.3158135008. The cubic root of 2661767051 is about 1385.8727270730.

The spelling of 2661767051 in words is "two billion, six hundred sixty-one million, seven hundred sixty-seven thousand, fifty-one".