6947472840 has 384 divisors, whose sum is σ = 26620513920. Its totient is φ = 1434316800.

The previous prime is 6947472839. The next prime is 6947472859. The reversal of 6947472840 is 482747496.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 15070210 + ... + 15070670.

It is an arithmetic number, because the mean of its divisors is an integer number (69324255).

Almost surely, 2^6947472840 is an apocalyptic number.

6947472840 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 6947472840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13310256960).

6947472840 is an abundant number, since it is smaller than the sum of its proper divisors (19673041080).

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

6947472840 is a wasteful number, since it uses less digits than its factorization.

6947472840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 733 (or 722 counting only the distinct ones).

The product of its (nonzero) digits is 2709504, while the sum is 51.

The square root of 6947472840 is about 83351.5017261237. The cubic root of 6947472840 is about 1908.1343624202.

The spelling of 6947472840 in words is "six billion, nine hundred forty-seven million, four hundred seventy-two thousand, eight hundred forty".