2720865373 has 2 divisors, whose sum is σ = 2720865374. Its totient is φ = 2720865372.

The previous prime is 2720865269. The next prime is 2720865383. The reversal of 2720865373 is 3735680272.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2710451844 + 10413529 = 52062^2 + 3227^2 .

It is a cyclic number.

It is not a de Polignac number, because 2720865373 - 2¹⁷ = 2720734301 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2720865383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1360432686 + 1360432687.

It is an arithmetic number, because the mean of its divisors is an integer number (1360432687).

Almost surely, 2^2720865373 is an apocalyptic number.

It is an amenable number.

2720865373 is a deficient number, since it is larger than the sum of its proper divisors (1).

2720865373 is an equidigital number, since it uses as much as digits as its factorization.

2720865373 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 423360, while the sum is 43.

The square root of 2720865373 is about 52161.9149667648. The cubic root of 2720865373 is about 1396.0544304152.

The spelling of 2720865373 in words is "two billion, seven hundred twenty million, eight hundred sixty-five thousand, three hundred seventy-three".