4645625849 has 2 divisors, whose sum is σ = 4645625850. Its totient is φ = 4645625848.

The previous prime is 4645625791. The next prime is 4645625857. The reversal of 4645625849 is 9485265464.

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., 4393038400 + 252587449 = 66280^2 + 15893^2 .

It is a cyclic number.

It is not a de Polignac number, because 4645625849 - 2¹⁶ = 4645560313 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4645625849.

It is not a weakly prime, because it can be changed into another prime (4645625899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2322812924 + 2322812925.

It is an arithmetic number, because the mean of its divisors is an integer number (2322812925).

Almost surely, 2^4645625849 is an apocalyptic number.

It is an amenable number.

4645625849 is a deficient number, since it is larger than the sum of its proper divisors (1).

4645625849 is an equidigital number, since it uses as much as digits as its factorization.

4645625849 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8294400, while the sum is 53.

The square root of 4645625849 is about 68158.8281075900. The cubic root of 4645625849 is about 1668.5840064302.

The spelling of 4645625849 in words is "four billion, six hundred forty-five million, six hundred twenty-five thousand, eight hundred forty-nine".