6269947489 has 9 divisors (see below), whose sum is σ = 6790466259. Its totient is φ = 5786693640.

The previous prime is 6269947471. The next prime is 6269947507. The reversal of 6269947489 is 9847499626.

It is a happy number.

The square root of 6269947489 is 79183.

It is a perfect power (a square), and thus also a powerful number.

It is an interprime number because it is at equal distance from previous prime (6269947471) and next prime (6269947507).

It can be written as a sum of positive squares in only one way, i.e., 927507025 + 5342440464 = 30455^2 + 73092^2 .

It is not a de Polignac number, because 6269947489 - 2⁵ = 6269947457 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6269947489.

It is not an unprimeable number, because it can be changed into a prime (6269947459) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1026334 + ... + 1032424.

It is an arithmetic number, because the mean of its divisors is an integer number (754496251).

Almost surely, 2^6269947489 is an apocalyptic number.

6269947489 is the 79183-rd square number.

6269947489 is the 39592-nd centered octagonal number.

It is an amenable number.

6269947489 is a deficient number, since it is larger than the sum of its proper divisors (520518770).

6269947489 is an frugal number, since it uses more digits than its factorization.

6269947489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12208 (or 6104 counting only the distinct ones).

The product of its digits is 47029248, while the sum is 64.

The cubic root of 6269947489 is about 1843.9733262697.

Multiplying 6269947489 by its sum of digits (64), we get a square (401276639296 = 633464²).

The spelling of 6269947489 in words is "six billion, two hundred sixty-nine million, nine hundred forty-seven thousand, four hundred eighty-nine".