2747042561 has 2 divisors, whose sum is σ = 2747042562. Its totient is φ = 2747042560.

The previous prime is 2747042539. The next prime is 2747042567. The reversal of 2747042561 is 1652407472.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2002025536 + 745017025 = 44744^2 + 27295^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2747042561 is a prime.

It is not a weakly prime, because it can be changed into another prime (2747042567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1373521280 + 1373521281.

It is an arithmetic number, because the mean of its divisors is an integer number (1373521281).

Almost surely, 2^2747042561 is an apocalyptic number.

It is an amenable number.

2747042561 is a deficient number, since it is larger than the sum of its proper divisors (1).

2747042561 is an equidigital number, since it uses as much as digits as its factorization.

2747042561 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 94080, while the sum is 38.

The square root of 2747042561 is about 52412.2367486830. The cubic root of 2747042561 is about 1400.5172512171.

The spelling of 2747042561 in words is "two billion, seven hundred forty-seven million, forty-two thousand, five hundred sixty-one".