7047375649 has 2 divisors, whose sum is σ = 7047375650. Its totient is φ = 7047375648.

The previous prime is 7047375641. The next prime is 7047375679. The reversal of 7047375649 is 9465737407.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7042566400 + 4809249 = 83920^2 + 2193^2 .

It is a cyclic number.

It is not a de Polignac number, because 7047375649 - 2³ = 7047375641 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7047375596 and 7047375605.

It is not a weakly prime, because it can be changed into another prime (7047375641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3523687824 + 3523687825.

It is an arithmetic number, because the mean of its divisors is an integer number (3523687825).

Almost surely, 2^7047375649 is an apocalyptic number.

It is an amenable number.

7047375649 is a deficient number, since it is larger than the sum of its proper divisors (1).

7047375649 is an equidigital number, since it uses as much as digits as its factorization.

7047375649 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4445280, while the sum is 52.

The square root of 7047375649 is about 83948.6488813251. The cubic root of 7047375649 is about 1917.2370242015.

The spelling of 7047375649 in words is "seven billion, forty-seven million, three hundred seventy-five thousand, six hundred forty-nine".