9640838101 has 2 divisors, whose sum is σ = 9640838102. Its totient is φ = 9640838100.

The previous prime is 9640837991. The next prime is 9640838107. The reversal of 9640838101 is 1018380469.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5219918001 + 4420920100 = 72249^2 + 66490^2 .

It is a cyclic number.

It is not a de Polignac number, because 9640838101 - 2¹³ = 9640829909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9640838107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4820419050 + 4820419051.

It is an arithmetic number, because the mean of its divisors is an integer number (4820419051).

Almost surely, 2^9640838101 is an apocalyptic number.

It is an amenable number.

9640838101 is a deficient number, since it is larger than the sum of its proper divisors (1).

9640838101 is an equidigital number, since it uses as much as digits as its factorization.

9640838101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 41472, while the sum is 40.

The square root of 9640838101 is about 98187.7696100691. The cubic root of 9640838101 is about 2128.3265527097.

The spelling of 9640838101 in words is "nine billion, six hundred forty million, eight hundred thirty-eight thousand, one hundred one".