4287937649 has 2 divisors, whose sum is σ = 4287937650. Its totient is φ = 4287937648.

The previous prime is 4287937637. The next prime is 4287937669. The reversal of 4287937649 is 9467397824.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3559315600 + 728622049 = 59660^2 + 26993^2 .

It is a cyclic number.

It is not a de Polignac number, because 4287937649 - 2¹² = 4287933553 is a prime.

It is not a weakly prime, because it can be changed into another prime (4287937669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2143968824 + 2143968825.

It is an arithmetic number, because the mean of its divisors is an integer number (2143968825).

Almost surely, 2^4287937649 is an apocalyptic number.

It is an amenable number.

4287937649 is a deficient number, since it is larger than the sum of its proper divisors (1).

4287937649 is an equidigital number, since it uses as much as digits as its factorization.

4287937649 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18289152, while the sum is 59.

The square root of 4287937649 is about 65482.3460865598. The cubic root of 4287937649 is about 1624.6113657127.

The spelling of 4287937649 in words is "four billion, two hundred eighty-seven million, nine hundred thirty-seven thousand, six hundred forty-nine".