6693862593978 has 384 divisors, whose sum is σ = 18307441152000. Its totient is φ = 1791674007552.

The previous prime is 6693862593973. The next prime is 6693862594033. The reversal of 6693862593978 is 8793952683966.

6693862593978 is a `hidden beast` number, since 6 + 69 + 386 + 2 + 5 + 93 + 97 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (81).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 6693862593897 and 6693862593906.

It is not an unprimeable number, because it can be changed into a prime (6693862593973) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 3189071173 + ... + 3189073271.

It is an arithmetic number, because the mean of its divisors is an integer number (47675628000).

Almost surely, 2^{6693862593978} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6693862593978, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9153720576000).

6693862593978 is an abundant number, since it is smaller than the sum of its proper divisors (11613578558022).

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

6693862593978 is a wasteful number, since it uses less digits than its factorization.

6693862593978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2968 (or 2956 counting only the distinct ones).

The product of its digits is 6348948480, while the sum is 81.

The spelling of 6693862593978 in words is "six trillion, six hundred ninety-three billion, eight hundred sixty-two million, five hundred ninety-three thousand, nine hundred seventy-eight".