9749938969 has 2 divisors, whose sum is σ = 9749938970. Its totient is φ = 9749938968.

The previous prime is 9749938967. The next prime is 9749939011. The reversal of 9749938969 is 9698399479.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5978382400 + 3771556569 = 77320^2 + 61413^2 .

It is a cyclic number.

It is not a de Polignac number, because 9749938969 - 2¹ = 9749938967 is a prime.

It is a super-2 number, since 2×9749938969² (a number of 21 digits) contains 22 as substring.

Together with 9749938967, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (9749938963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4874969484 + 4874969485.

It is an arithmetic number, because the mean of its divisors is an integer number (4874969485).

Almost surely, 2^9749938969 is an apocalyptic number.

It is an amenable number.

9749938969 is a deficient number, since it is larger than the sum of its proper divisors (1).

9749938969 is an equidigital number, since it uses as much as digits as its factorization.

9749938969 is an evil number, because the sum of its binary digits is even.

The product of its digits is 238085568, while the sum is 73.

The square root of 9749938969 is about 98741.7792476923. The cubic root of 9749938969 is about 2136.3248833246.

The spelling of 9749938969 in words is "nine billion, seven hundred forty-nine million, nine hundred thirty-eight thousand, nine hundred sixty-nine".