6489531148 has 6 divisors (see below), whose sum is σ = 11356679516. Its totient is φ = 3244765572.

The previous prime is 6489531133. The next prime is 6489531163. The reversal of 6489531148 is 8411359846.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (6489531133) and next prime (6489531163).

It is a super-2 number, since 2×6489531148² = 84228029041724395808, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 811191390 + ... + 811191397.

Almost surely, 2^6489531148 is an apocalyptic number.

It is an amenable number.

6489531148 is a deficient number, since it is larger than the sum of its proper divisors (4867148368).

6489531148 is a wasteful number, since it uses less digits than its factorization.

6489531148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1622382791 (or 1622382789 counting only the distinct ones).

The product of its digits is 829440, while the sum is 49.

The square root of 6489531148 is about 80557.6262559914. The cubic root of 6489531148 is about 1865.2531142110.

The spelling of 6489531148 in words is "six billion, four hundred eighty-nine million, five hundred thirty-one thousand, one hundred forty-eight".