7489683121 has 2 divisors, whose sum is σ = 7489683122. Its totient is φ = 7489683120.

The previous prime is 7489683109. The next prime is 7489683133. The reversal of 7489683121 is 1213869847.

It is a balanced prime because it is at equal distance from previous prime (7489683109) and next prime (7489683133).

It can be written as a sum of positive squares in only one way, i.e., 4705960000 + 2783723121 = 68600^2 + 52761^2 .

It is an emirp because it is prime and its reverse (1213869847) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7489683121 - 2²¹ = 7487585969 is a prime.

It is not a weakly prime, because it can be changed into another prime (7489693121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3744841560 + 3744841561.

It is an arithmetic number, because the mean of its divisors is an integer number (3744841561).

Almost surely, 2^7489683121 is an apocalyptic number.

It is an amenable number.

7489683121 is a deficient number, since it is larger than the sum of its proper divisors (1).

7489683121 is an equidigital number, since it uses as much as digits as its factorization.

7489683121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 580608, while the sum is 49.

The square root of 7489683121 is about 86542.9553516634. The cubic root of 7489683121 is about 1956.5358705954.

It can be divided in two parts, 748 and 9683121, that added together give a palindrome (9683869).

The spelling of 7489683121 in words is "seven billion, four hundred eighty-nine million, six hundred eighty-three thousand, one hundred twenty-one".