6978787704 has 192 divisors, whose sum is σ = 23472384000. Its totient is φ = 1827982080.

The previous prime is 6978787703. The next prime is 6978787709. The reversal of 6978787704 is 4077878796.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6978787703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 285102 + ... + 308610.

It is an arithmetic number, because the mean of its divisors is an integer number (122252000).

Almost surely, 2^6978787704 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6978787704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11736192000).

6978787704 is an abundant number, since it is smaller than the sum of its proper divisors (16493596296).

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

6978787704 is a wasteful number, since it uses less digits than its factorization.

6978787704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23578 (or 23571 counting only the distinct ones).

The product of its (nonzero) digits is 33191424, while the sum is 63.

The square root of 6978787704 is about 83539.1387554361. The cubic root of 6978787704 is about 1910.9969580345.

The spelling of 6978787704 in words is "six billion, nine hundred seventy-eight million, seven hundred eighty-seven thousand, seven hundred four".