6548375647 has 6 divisors (see below), whose sum is σ = 7197801464. Its totient is φ = 5953068660.

The previous prime is 6548375641. The next prime is 6548375663. The reversal of 6548375647 is 7465738456.

It is a de Polignac number, because none of the positive numbers 2^k-6548375647 is a prime.

It is a super-2 number, since 2×6548375647² = 85762447228445337218, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6548375641) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 27059283 + ... + 27059524.

Almost surely, 2^6548375647 is an apocalyptic number.

6548375647 is a deficient number, since it is larger than the sum of its proper divisors (649425817).

6548375647 is a wasteful number, since it uses less digits than its factorization.

6548375647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54118829 (or 54118818 counting only the distinct ones).

The product of its digits is 16934400, while the sum is 55.

The square root of 6548375647 is about 80922.0343725984. The cubic root of 6548375647 is about 1870.8739513536.

The spelling of 6548375647 in words is "six billion, five hundred forty-eight million, three hundred seventy-five thousand, six hundred forty-seven".