4487136889 has 2 divisors, whose sum is σ = 4487136890. Its totient is φ = 4487136888.

The previous prime is 4487136869. The next prime is 4487136947. The reversal of 4487136889 is 9886317844.

It is an a-pointer prime, because the next prime (4487136947) can be obtained adding 4487136889 to its sum of digits (58).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3652389225 + 834747664 = 60435^2 + 28892^2 .

It is a cyclic number.

It is not a de Polignac number, because 4487136889 - 2¹⁹ = 4486612601 is a prime.

It is not a weakly prime, because it can be changed into another prime (4487136869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2243568444 + 2243568445.

It is an arithmetic number, because the mean of its divisors is an integer number (2243568445).

Almost surely, 2^4487136889 is an apocalyptic number.

It is an amenable number.

4487136889 is a deficient number, since it is larger than the sum of its proper divisors (1).

4487136889 is an equidigital number, since it uses as much as digits as its factorization.

4487136889 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9289728, while the sum is 58.

The square root of 4487136889 is about 66986.0947436108. The cubic root of 4487136889 is about 1649.3890470246.

It can be divided in two parts, 4487 and 136889, that added together give a square (141376 = 376²).

The spelling of 4487136889 in words is "four billion, four hundred eighty-seven million, one hundred thirty-six thousand, eight hundred eighty-nine".