4921369489 has 2 divisors, whose sum is σ = 4921369490. Its totient is φ = 4921369488.

The previous prime is 4921369469. The next prime is 4921369517. The reversal of 4921369489 is 9849631294.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3001177089 + 1920192400 = 54783^2 + 43820^2 .

It is a cyclic number.

It is not a de Polignac number, because 4921369489 - 2⁷ = 4921369361 is a prime.

It is a super-2 number, since 2×4921369489² = 48439755294520242242, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (4921369469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2460684744 + 2460684745.

It is an arithmetic number, because the mean of its divisors is an integer number (2460684745).

Almost surely, 2^4921369489 is an apocalyptic number.

It is an amenable number.

4921369489 is a deficient number, since it is larger than the sum of its proper divisors (1).

4921369489 is an equidigital number, since it uses as much as digits as its factorization.

4921369489 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3359232, while the sum is 55.

The square root of 4921369489 is about 70152.4731495619. The cubic root of 4921369489 is about 1700.9647913389.

The spelling of 4921369489 in words is "four billion, nine hundred twenty-one million, three hundred sixty-nine thousand, four hundred eighty-nine".