7523489849 has 2 divisors, whose sum is σ = 7523489850. Its totient is φ = 7523489848.

The previous prime is 7523489767. The next prime is 7523489861. The reversal of 7523489849 is 9489843257.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4718728249 + 2804761600 = 68693^2 + 52960^2 .

It is a cyclic number.

It is not a de Polignac number, because 7523489849 - 2³² = 3228522553 is a prime.

It is not a weakly prime, because it can be changed into another prime (7523479849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3761744924 + 3761744925.

It is an arithmetic number, because the mean of its divisors is an integer number (3761744925).

Almost surely, 2^7523489849 is an apocalyptic number.

It is an amenable number.

7523489849 is a deficient number, since it is larger than the sum of its proper divisors (1).

7523489849 is an equidigital number, since it uses as much as digits as its factorization.

7523489849 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17418240, while the sum is 59.

The square root of 7523489849 is about 86738.0530620788. The cubic root of 7523489849 is about 1959.4752386109.

The spelling of 7523489849 in words is "seven billion, five hundred twenty-three million, four hundred eighty-nine thousand, eight hundred forty-nine".