6547678631 has 16 divisors (see below), whose sum is σ = 7090731648. Its totient is φ = 6010329600.

The previous prime is 6547678603. The next prime is 6547678651. The reversal of 6547678631 is 1368767456.

It is a cyclic number.

It is not a de Polignac number, because 6547678631 - 2¹⁸ = 6547416487 is a prime.

It is a super-2 number, since 2×6547678631² = 85744190909708068322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6547678651) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3498626 + ... + 3500496.

It is an arithmetic number, because the mean of its divisors is an integer number (443170728).

Almost surely, 2^6547678631 is an apocalyptic number.

6547678631 is a deficient number, since it is larger than the sum of its proper divisors (543053017).

6547678631 is a wasteful number, since it uses less digits than its factorization.

6547678631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3242.

The product of its digits is 5080320, while the sum is 53.

The square root of 6547678631 is about 80917.7275447105. The cubic root of 6547678631 is about 1870.8075697338.

The spelling of 6547678631 in words is "six billion, five hundred forty-seven million, six hundred seventy-eight thousand, six hundred thirty-one".