9625649443 has 2 divisors, whose sum is σ = 9625649444. Its totient is φ = 9625649442.

The previous prime is 9625649437. The next prime is 9625649447. The reversal of 9625649443 is 3449465269.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9625649443 is a prime.

It is not a weakly prime, because it can be changed into another prime (9625649447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4812824721 + 4812824722.

It is an arithmetic number, because the mean of its divisors is an integer number (4812824722).

Almost surely, 2^9625649443 is an apocalyptic number.

9625649443 is a deficient number, since it is larger than the sum of its proper divisors (1).

9625649443 is an equidigital number, since it uses as much as digits as its factorization.

9625649443 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5598720, while the sum is 52.

The square root of 9625649443 is about 98110.3941639213. The cubic root of 9625649443 is about 2127.2082745794.

The spelling of 9625649443 in words is "nine billion, six hundred twenty-five million, six hundred forty-nine thousand, four hundred forty-three".