6994827840 has 896 divisors, whose sum is σ = 30969630720. Its totient is φ = 1290240000.

The previous prime is 6994827787. The next prime is 6994827877. The reversal of 6994827840 is 487284996.

It is a super-2 number, since 2×6994827840² = 97855233022478131200, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 27867715 + ... + 27867965.

It is an arithmetic number, because the mean of its divisors is an integer number (34564320).

Almost surely, 2^6994827840 is an apocalyptic number.

6994827840 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 6994827840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15484815360).

6994827840 is an abundant number, since it is smaller than the sum of its proper divisors (23974802880).

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

6994827840 is a wasteful number, since it uses less digits than its factorization.

6994827840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331 (or 321 counting only the distinct ones).

The product of its (nonzero) digits is 6967296, while the sum is 57.

The square root of 6994827840 is about 83635.0873736615. The cubic root of 6994827840 is about 1912.4599244881.

The spelling of 6994827840 in words is "six billion, nine hundred ninety-four million, eight hundred twenty-seven thousand, eight hundred forty".