6471677648597 has 6 divisors (see below), whose sum is σ = 7528278081078. Its totient is φ = 5547152270184.

The previous prime is 6471677648581. The next prime is 6471677648617. The reversal of 6471677648597 is 7958467761746.

It can be written as a sum of positive squares in only one way, i.e., 4675450473841 + 1796227174756 = 2162279^2 + 1340234^2 .

It is not a de Polignac number, because 6471677648597 - 2⁴ = 6471677648581 is a prime.

It is a super-2 number, since 2×6471677648597² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6471677642597) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 66037526978 + ... + 66037527075.

It is an arithmetic number, because the mean of its divisors is an integer number (1254713013513).

Almost surely, 2^{6471677648597} is an apocalyptic number.

It is an amenable number.

6471677648597 is a deficient number, since it is larger than the sum of its proper divisors (1056600432481).

6471677648597 is a wasteful number, since it uses less digits than its factorization.

6471677648597 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132075054067 (or 132075054060 counting only the distinct ones).

The product of its digits is 2987228160, while the sum is 77.

The spelling of 6471677648597 in words is "six trillion, four hundred seventy-one billion, six hundred seventy-seven million, six hundred forty-eight thousand, five hundred ninety-seven".