6847921080 has 768 divisors, whose sum is σ = 30896087040. Its totient is φ = 1269043200.

The previous prime is 6847921063. The next prime is 6847921133. The reversal of 6847921080 is 801297486.

It is a super-3 number, since 3×6847921080³ (a number of 30 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 11170854 + ... + 11171466.

It is an arithmetic number, because the mean of its divisors is an integer number (40229280).

Almost surely, 2^6847921080 is an apocalyptic number.

6847921080 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 6847921080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15448043520).

6847921080 is an abundant number, since it is smaller than the sum of its proper divisors (24048165960).

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

6847921080 is a wasteful number, since it uses less digits than its factorization.

6847921080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 692 (or 685 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 45.

The square root of 6847921080 is about 82752.1666181617. The cubic root of 6847921080 is about 1898.9764644145.

The spelling of 6847921080 in words is "six billion, eight hundred forty-seven million, nine hundred twenty-one thousand, eighty".