6497553685 has 32 divisors (see below), whose sum is σ = 9036610560. Its totient is φ = 4392790272.

The previous prime is 6497553677. The next prime is 6497553701. The reversal of 6497553685 is 5863557946.

It is a cyclic number.

It is not a de Polignac number, because 6497553685 - 2³ = 6497553677 is a prime.

It is a super-3 number, since 3×6497553685³ (a number of 30 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2755527 + ... + 2757883.

It is an arithmetic number, because the mean of its divisors is an integer number (282394080).

Almost surely, 2^6497553685 is an apocalyptic number.

It is an amenable number.

6497553685 is a deficient number, since it is larger than the sum of its proper divisors (2539056875).

6497553685 is a wasteful number, since it uses less digits than its factorization.

6497553685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3445.

The product of its digits is 27216000, while the sum is 58.

The square root of 6497553685 is about 80607.4046536669. The cubic root of 6497553685 is about 1866.0214234404.

The spelling of 6497553685 in words is "six billion, four hundred ninety-seven million, five hundred fifty-three thousand, six hundred eighty-five".