6492541640857 has 8 divisors (see below), whose sum is σ = 6494528768000. Its totient is φ = 6490554698304.

The previous prime is 6492541640843. The next prime is 6492541640861. The reversal of 6492541640857 is 7580461452946.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6492541640857 - 2²⁷ = 6492407423129 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6492541640795 and 6492541640804.

It is not an unprimeable number, because it can be changed into a prime (6492541640807) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104892244 + ... + 104954122.

It is an arithmetic number, because the mean of its divisors is an integer number (811816096000).

Almost surely, 2^{6492541640857} is an apocalyptic number.

It is an amenable number.

6492541640857 is a deficient number, since it is larger than the sum of its proper divisors (1987127143).

6492541640857 is a wasteful number, since it uses less digits than its factorization.

6492541640857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92295.

The product of its (nonzero) digits is 58060800, while the sum is 61.

The spelling of 6492541640857 in words is "six trillion, four hundred ninety-two billion, five hundred forty-one million, six hundred forty thousand, eight hundred fifty-seven".