2799961361 has 2 divisors, whose sum is σ = 2799961362. Its totient is φ = 2799961360.

The previous prime is 2799961343. The next prime is 2799961369. The reversal of 2799961361 is 1631699972.

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., 2512014400 + 287946961 = 50120^2 + 16969^2 .

It is a cyclic number.

It is not a de Polignac number, because 2799961361 - 2¹⁰ = 2799960337 is a prime.

It is not a weakly prime, because it can be changed into another prime (2799961369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1399980680 + 1399980681.

It is an arithmetic number, because the mean of its divisors is an integer number (1399980681).

Almost surely, 2^2799961361 is an apocalyptic number.

It is an amenable number.

2799961361 is a deficient number, since it is larger than the sum of its proper divisors (1).

2799961361 is an equidigital number, since it uses as much as digits as its factorization.

2799961361 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1102248, while the sum is 53.

The square root of 2799961361 is about 52914.6611158004. The cubic root of 2799961361 is about 1409.4532630361.

The spelling of 2799961361 in words is "two billion, seven hundred ninety-nine million, nine hundred sixty-one thousand, three hundred sixty-one".