2879073661 has 2 divisors, whose sum is σ = 2879073662. Its totient is φ = 2879073660.

The previous prime is 2879073601. The next prime is 2879073671. The reversal of 2879073661 is 1663709782.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2248561561 + 630512100 = 47419^2 + 25110^2 .

It is a cyclic number.

It is not a de Polignac number, because 2879073661 - 2⁹ = 2879073149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2879073601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1439536830 + 1439536831.

It is an arithmetic number, because the mean of its divisors is an integer number (1439536831).

Almost surely, 2^2879073661 is an apocalyptic number.

It is an amenable number.

2879073661 is a deficient number, since it is larger than the sum of its proper divisors (1).

2879073661 is an equidigital number, since it uses as much as digits as its factorization.

2879073661 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 762048, while the sum is 49.

The square root of 2879073661 is about 53657.0001118214. Note that the first 3 decimals coincide. The cubic root of 2879073661 is about 1422.6047642816.

The spelling of 2879073661 in words is "two billion, eight hundred seventy-nine million, seventy-three thousand, six hundred sixty-one".