6148827780489 has 9 divisors (see below), whose sum is σ = 8881650872679. Its totient is φ = 4099213560960.

The previous prime is 6148827780479. The next prime is 6148827780539. The reversal of 6148827780489 is 9840877288416.

The square root of 6148827780489 is 2479683.

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

6148827780489 is a `hidden beast` number, since 6 + 1 + 48 + 8 + 27 + 7 + 80 + 489 = 666.

It can be written as a sum of positive squares in only one way, i.e., 901612918089 + 5247214862400 = 949533^2 + 2290680^2 .

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 6148827780489 - 2⁵ = 6148827780457 is a prime.

It is a super-2 number, since 2×6148827780489² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6148827780479) 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, 7025769 + ... + 7852329.

Almost surely, 2^{6148827780489} is an apocalyptic number.

6148827780489 is the 2479683-rd square number.

6148827780489 is the 1239842-nd centered octagonal number.

It is an amenable number.

6148827780489 is a deficient number, since it is larger than the sum of its proper divisors (2732823092190).

6148827780489 is an frugal number, since it uses more digits than its factorization.

6148827780489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1653128 (or 826564 counting only the distinct ones).

The product of its (nonzero) digits is 346816512, while the sum is 72.

The spelling of 6148827780489 in words is "six trillion, one hundred forty-eight billion, eight hundred twenty-seven million, seven hundred eighty thousand, four hundred eighty-nine".