6947049840 has 80 divisors (see below), whose sum is σ = 22061150496. Its totient is φ = 1807360000.

The previous prime is 6947049839. The next prime is 6947049869. The reversal of 6947049840 is 489407496.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 343161 + ... + 362840.

Almost surely, 2^6947049840 is an apocalyptic number.

6947049840 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6947049840 is an abundant number, since it is smaller than the sum of its proper divisors (15114100656).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6947049840 is a wasteful number, since it uses less digits than its factorization.

6947049840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 706058 (or 706052 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 51.

The square root of 6947049840 is about 83348.9642407151. The cubic root of 6947049840 is about 1908.0956357620.

The spelling of 6947049840 in words is "six billion, nine hundred forty-seven million, forty-nine thousand, eight hundred forty".