2405956361 has 2 divisors, whose sum is σ = 2405956362. Its totient is φ = 2405956360.

The previous prime is 2405956321. The next prime is 2405956373. The reversal of 2405956361 is 1636595042.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1757286400 + 648669961 = 41920^2 + 25469^2 .

It is a cyclic number.

It is not a de Polignac number, because 2405956361 - 2¹⁰ = 2405955337 is a prime.

It is a super-2 number, since 2×2405956361² = 11577252022072724642, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (2405956321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1202978180 + 1202978181.

It is an arithmetic number, because the mean of its divisors is an integer number (1202978181).

Almost surely, 2^2405956361 is an apocalyptic number.

It is an amenable number.

2405956361 is a deficient number, since it is larger than the sum of its proper divisors (1).

2405956361 is an equidigital number, since it uses as much as digits as its factorization.

2405956361 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 194400, while the sum is 41.

The square root of 2405956361 is about 49050.5490387213. The cubic root of 2405956361 is about 1339.9725918876.

The spelling of 2405956361 in words is "two billion, four hundred five million, nine hundred fifty-six thousand, three hundred sixty-one".