6456910081 has 8 divisors (see below), whose sum is σ = 6542180480. Its totient is φ = 6371728272.

The previous prime is 6456910073. The next prime is 6456910091. The reversal of 6456910081 is 1800196546.

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 6456910081 - 2³ = 6456910073 is a prime.

It is a super-2 number, since 2×6456910081² = 83383375588238853122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6456910091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 131566 + ... + 173848.

It is an arithmetic number, because the mean of its divisors is an integer number (817772560).

Almost surely, 2^6456910081 is an apocalyptic number.

It is an amenable number.

6456910081 is a deficient number, since it is larger than the sum of its proper divisors (85270399).

6456910081 is a wasteful number, since it uses less digits than its factorization.

6456910081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44295.

The product of its (nonzero) digits is 51840, while the sum is 40.

The square root of 6456910081 is about 80354.9007901821. The cubic root of 6456910081 is about 1862.1224933192.

The spelling of 6456910081 in words is "six billion, four hundred fifty-six million, nine hundred ten thousand, eighty-one".