7609472749 has 2 divisors, whose sum is σ = 7609472750. Its totient is φ = 7609472748.

The previous prime is 7609472747. The next prime is 7609472779. The reversal of 7609472749 is 9472749067.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7463232100 + 146240649 = 86390^2 + 12093^2 .

It is a cyclic number.

It is not a de Polignac number, because 7609472749 - 2¹ = 7609472747 is a prime.

Together with 7609472747, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 7609472749.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7609472747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3804736374 + 3804736375.

It is an arithmetic number, because the mean of its divisors is an integer number (3804736375).

Almost surely, 2^7609472749 is an apocalyptic number.

It is an amenable number.

7609472749 is a deficient number, since it is larger than the sum of its proper divisors (1).

7609472749 is an equidigital number, since it uses as much as digits as its factorization.

7609472749 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5334336, while the sum is 55.

The square root of 7609472749 is about 87232.2918935414. The cubic root of 7609472749 is about 1966.9116622330.

The spelling of 7609472749 in words is "seven billion, six hundred nine million, four hundred seventy-two thousand, seven hundred forty-nine".