7186825649 has 2 divisors, whose sum is σ = 7186825650. Its totient is φ = 7186825648.

The previous prime is 7186825643. The next prime is 7186825669. The reversal of 7186825649 is 9465286817.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4791408400 + 2395417249 = 69220^2 + 48943^2 .

It is a cyclic number.

It is not a de Polignac number, because 7186825649 - 2²⁴ = 7170048433 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7186825594 and 7186825603.

It is not a weakly prime, because it can be changed into another prime (7186825643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3593412824 + 3593412825.

It is an arithmetic number, because the mean of its divisors is an integer number (3593412825).

Almost surely, 2^7186825649 is an apocalyptic number.

It is an amenable number.

7186825649 is a deficient number, since it is larger than the sum of its proper divisors (1).

7186825649 is an equidigital number, since it uses as much as digits as its factorization.

7186825649 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5806080, while the sum is 56.

The square root of 7186825649 is about 84775.1475905527. The cubic root of 7186825649 is about 1929.8003005095.

The spelling of 7186825649 in words is "seven billion, one hundred eighty-six million, eight hundred twenty-five thousand, six hundred forty-nine".