6985945980 has 192 divisors, whose sum is σ = 23951262720. Its totient is φ = 1679553792.

The previous prime is 6985945979. The next prime is 6985945991. The reversal of 6985945980 is 895495896.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 290289 + ... + 313431.

It is an arithmetic number, because the mean of its divisors is an integer number (124746160).

Almost surely, 2^6985945980 is an apocalyptic number.

6985945980 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 6985945980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11975631360).

6985945980 is an abundant number, since it is smaller than the sum of its proper divisors (16965316740).

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

6985945980 is a wasteful number, since it uses less digits than its factorization.

6985945980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23217 (or 23209 counting only the distinct ones).

The product of its (nonzero) digits is 27993600, while the sum is 63.

The square root of 6985945980 is about 83581.9716206791. The cubic root of 6985945980 is about 1911.6501168072.

The spelling of 6985945980 in words is "six billion, nine hundred eighty-five million, nine hundred forty-five thousand, nine hundred eighty".