6547989374 has 16 divisors (see below), whose sum is σ = 9885376512. Its totient is φ = 3252930168.

The previous prime is 6547989367. The next prime is 6547989377. The reversal of 6547989374 is 4739897456.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6547989377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 185207 + ... + 217709.

It is an arithmetic number, because the mean of its divisors is an integer number (617836032).

Almost surely, 2^6547989374 is an apocalyptic number.

6547989374 is a deficient number, since it is larger than the sum of its proper divisors (3337387138).

6547989374 is a wasteful number, since it uses less digits than its factorization.

6547989374 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33151.

The product of its digits is 45722880, while the sum is 62.

The square root of 6547989374 is about 80919.6476388769. The cubic root of 6547989374 is about 1870.8371645053.

The spelling of 6547989374 in words is "six billion, five hundred forty-seven million, nine hundred eighty-nine thousand, three hundred seventy-four".