6540056793 has 12 divisors (see below), whose sum is σ = 9494222400. Its totient is φ = 4338126936.

The previous prime is 6540056779. The next prime is 6540056797. The reversal of 6540056793 is 3976500456.

It is not a de Polignac number, because 6540056793 - 2⁴ = 6540056777 is a prime.

It is a super-3 number, since 3×6540056793³ (a number of 30 digits) contains 333 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6540056797) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1824021 + ... + 1827602.

It is an arithmetic number, because the mean of its divisors is an integer number (791185200).

Almost surely, 2^6540056793 is an apocalyptic number.

It is an amenable number.

6540056793 is a deficient number, since it is larger than the sum of its proper divisors (2954165607).

6540056793 is a wasteful number, since it uses less digits than its factorization.

6540056793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3651828 (or 3651825 counting only the distinct ones).

The product of its (nonzero) digits is 680400, while the sum is 45.

The square root of 6540056793 is about 80870.6176123319. The cubic root of 6540056793 is about 1870.0813821617.

The spelling of 6540056793 in words is "six billion, five hundred forty million, fifty-six thousand, seven hundred ninety-three".