6984195840 has 720 divisors, whose sum is σ = 26924679936. Its totient is φ = 1725235200.

The previous prime is 6984195767. The next prime is 6984195851. The reversal of 6984195840 is 485914896.

It is a tau number, because it is divible by the number of its divisors (720).

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 79 ways as a sum of consecutive naturals, for example, 131777254 + ... + 131777306.

Almost surely, 2^6984195840 is an apocalyptic number.

6984195840 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 6984195840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13462339968).

6984195840 is an abundant number, since it is smaller than the sum of its proper divisors (19940484096).

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

6984195840 is a wasteful number, since it uses less digits than its factorization.

6984195840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158 (or 135 counting only the distinct ones).

The product of its (nonzero) digits is 2488320, while the sum is 54.

The square root of 6984195840 is about 83571.5013626057. The cubic root of 6984195840 is about 1911.4904660469.

The spelling of 6984195840 in words is "six billion, nine hundred eighty-four million, one hundred ninety-five thousand, eight hundred forty".