9650419021 has 2 divisors, whose sum is σ = 9650419022. Its totient is φ = 9650419020.

The previous prime is 9650418997. The next prime is 9650419027. The reversal of 9650419021 is 1209140569.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8265537225 + 1384881796 = 90915^2 + 37214^2 .

It is a cyclic number.

It is not a de Polignac number, because 9650419021 - 2⁵ = 9650418989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9650419027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4825209510 + 4825209511.

It is an arithmetic number, because the mean of its divisors is an integer number (4825209511).

Almost surely, 2^9650419021 is an apocalyptic number.

It is an amenable number.

9650419021 is a deficient number, since it is larger than the sum of its proper divisors (1).

9650419021 is an equidigital number, since it uses as much as digits as its factorization.

9650419021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19440, while the sum is 37.

The square root of 9650419021 is about 98236.5462595260. The cubic root of 9650419021 is about 2129.0313522677.

The spelling of 9650419021 in words is "nine billion, six hundred fifty million, four hundred nineteen thousand, twenty-one".