6455714578681 has 12 divisors (see below), whose sum is σ = 6857892479088. Its totient is φ = 6075885265472.

The previous prime is 6455714578601. The next prime is 6455714578711. The reversal of 6455714578681 is 1868754175546.

It is not a de Polignac number, because 6455714578681 - 2¹³ = 6455714570489 is a prime.

It is a super-2 number, since 2×6455714578681² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6455714578601) 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, 41117730 + ... + 41274436.

It is an arithmetic number, because the mean of its divisors is an integer number (571491039924).

Almost surely, 2^{6455714578681} is an apocalyptic number.

It is an amenable number.

6455714578681 is a deficient number, since it is larger than the sum of its proper divisors (402177900407).

6455714578681 is a wasteful number, since it uses less digits than its factorization.

6455714578681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299288 (or 299271 counting only the distinct ones).

The product of its digits is 225792000, while the sum is 67.

The spelling of 6455714578681 in words is "six trillion, four hundred fifty-five billion, seven hundred fourteen million, five hundred seventy-eight thousand, six hundred eighty-one".