2350643621 has 2 divisors, whose sum is σ = 2350643622. Its totient is φ = 2350643620.

The previous prime is 2350643609. The next prime is 2350643623. The reversal of 2350643621 is 1263460532.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2228784100 + 121859521 = 47210^2 + 11039^2 .

It is a cyclic number.

It is not a de Polignac number, because 2350643621 - 2⁶ = 2350643557 is a prime.

It is a super-3 number, since 3×2350643621³ (a number of 29 digits) contains 333 as substring.

Together with 2350643623, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2350643623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1175321810 + 1175321811.

It is an arithmetic number, because the mean of its divisors is an integer number (1175321811).

Almost surely, 2^2350643621 is an apocalyptic number.

It is an amenable number.

2350643621 is a deficient number, since it is larger than the sum of its proper divisors (1).

2350643621 is an equidigital number, since it uses as much as digits as its factorization.

2350643621 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25920, while the sum is 32.

The square root of 2350643621 is about 48483.4365634285. The cubic root of 2350643621 is about 1329.6242594722.

The spelling of 2350643621 in words is "two billion, three hundred fifty million, six hundred forty-three thousand, six hundred twenty-one".