6748397865 has 48 divisors (see below), whose sum is σ = 13432236480. Its totient is φ = 3099738240.

The previous prime is 6748397861. The next prime is 6748397881. The reversal of 6748397865 is 5687938476.

6748397865 is a `hidden beast` number, since 6 + 7 + 483 + 97 + 8 + 65 = 666.

It is not a de Polignac number, because 6748397865 - 2² = 6748397861 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6748397861) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 349362 + ... + 368171.

It is an arithmetic number, because the mean of its divisors is an integer number (279838260).

Almost surely, 2^6748397865 is an apocalyptic number.

It is an amenable number.

6748397865 is a deficient number, since it is larger than the sum of its proper divisors (6683838615).

6748397865 is a wasteful number, since it uses less digits than its factorization.

6748397865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 717574 (or 717571 counting only the distinct ones).

The product of its digits is 60963840, while the sum is 63.

The square root of 6748397865 is about 82148.6327640333. The cubic root of 6748397865 is about 1889.7320397803.

The spelling of 6748397865 in words is "six billion, seven hundred forty-eight million, three hundred ninety-seven thousand, eight hundred sixty-five".