6947228640 has 192 divisors, whose sum is σ = 23997980160. Its totient is φ = 1675376640.

The previous prime is 6947228611. The next prime is 6947228677. The reversal of 6947228640 is 468227496.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 6947228640.

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, 1036821 + ... + 1043499.

It is an arithmetic number, because the mean of its divisors is an integer number (124989480).

Almost surely, 2^6947228640 is an apocalyptic number.

6947228640 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6947228640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11998990080).

6947228640 is an abundant number, since it is smaller than the sum of its proper divisors (17050751520).

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

6947228640 is a wasteful number, since it uses less digits than its factorization.

6947228640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6905 (or 6897 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 48.

The square root of 6947228640 is about 83350.0368326253. The cubic root of 6947228640 is about 1908.1120055200.

The spelling of 6947228640 in words is "six billion, nine hundred forty-seven million, two hundred twenty-eight thousand, six hundred forty".