2730957661 has 2 divisors, whose sum is σ = 2730957662. Its totient is φ = 2730957660.

The previous prime is 2730957629. The next prime is 2730957689. The reversal of 2730957661 is 1667590372.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2243916900 + 487040761 = 47370^2 + 22069^2 .

It is a cyclic number.

It is not a de Polignac number, because 2730957661 - 2⁵ = 2730957629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2730957611) 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, 1365478830 + 1365478831.

It is an arithmetic number, because the mean of its divisors is an integer number (1365478831).

Almost surely, 2^2730957661 is an apocalyptic number.

It is an amenable number.

2730957661 is a deficient number, since it is larger than the sum of its proper divisors (1).

2730957661 is an equidigital number, since it uses as much as digits as its factorization.

2730957661 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 476280, while the sum is 46.

The square root of 2730957661 is about 52258.5654318983. The cubic root of 2730957661 is about 1397.7783916124.

The spelling of 2730957661 in words is "two billion, seven hundred thirty million, nine hundred fifty-seven thousand, six hundred sixty-one".