2365620409 has 2 divisors, whose sum is σ = 2365620410. Its totient is φ = 2365620408.

The previous prime is 2365620379. The next prime is 2365620427. The reversal of 2365620409 is 9040265632.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1492122384 + 873498025 = 38628^2 + 29555^2 .

It is a cyclic number.

It is not a de Polignac number, because 2365620409 - 2²³ = 2357231801 is a prime.

It is not a weakly prime, because it can be changed into another prime (2365620109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1182810204 + 1182810205.

It is an arithmetic number, because the mean of its divisors is an integer number (1182810205).

Almost surely, 2^2365620409 is an apocalyptic number.

It is an amenable number.

2365620409 is a deficient number, since it is larger than the sum of its proper divisors (1).

2365620409 is an equidigital number, since it uses as much as digits as its factorization.

2365620409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 77760, while the sum is 37.

The square root of 2365620409 is about 48637.6439499283. The cubic root of 2365620409 is about 1332.4421200132.

The spelling of 2365620409 in words is "two billion, three hundred sixty-five million, six hundred twenty thousand, four hundred nine".