6994278720 has 1344 divisors, whose sum is σ = 31872911616. Its totient is φ = 1433272320.

The previous prime is 6994278691. The next prime is 6994278743. The reversal of 6994278720 is 278724996.

It is a Harshad number since it is a multiple of its sum of digits (54).

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, 189034542 + ... + 189034578.

It is an arithmetic number, because the mean of its divisors is an integer number (23714964).

Almost surely, 2^6994278720 is an apocalyptic number.

6994278720 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 6994278720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15936455808).

6994278720 is an abundant number, since it is smaller than the sum of its proper divisors (24878632896).

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

6994278720 is a wasteful number, since it uses less digits than its factorization.

6994278720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110 (or 88 counting only the distinct ones).

The product of its (nonzero) digits is 3048192, while the sum is 54.

The square root of 6994278720 is about 83631.8044765268. The cubic root of 6994278720 is about 1912.4098781062.

The spelling of 6994278720 in words is "six billion, nine hundred ninety-four million, two hundred seventy-eight thousand, seven hundred twenty".