9961253119 has 2 divisors, whose sum is σ = 9961253120. Its totient is φ = 9961253118.

The previous prime is 9961253117. The next prime is 9961253129. The reversal of 9961253119 is 9113521699.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 9961253119 - 2¹ = 9961253117 is a prime.

It is a super-2 number, since 2×9961253119² (a number of 21 digits) contains 22 as substring.

Together with 9961253117, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9961253117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4980626559 + 4980626560.

It is an arithmetic number, because the mean of its divisors is an integer number (4980626560).

Almost surely, 2^9961253119 is an apocalyptic number.

9961253119 is a deficient number, since it is larger than the sum of its proper divisors (1).

9961253119 is an equidigital number, since it uses as much as digits as its factorization.

9961253119 is an evil number, because the sum of its binary digits is even.

The product of its digits is 131220, while the sum is 46.

The square root of 9961253119 is about 99806.0775654469. The cubic root of 9961253119 is about 2151.6485009042.

The spelling of 9961253119 in words is "nine billion, nine hundred sixty-one million, two hundred fifty-three thousand, one hundred nineteen".