678813053184 has 1080 divisors, whose sum is σ = 2538897596928. Its totient is φ = 179338199040.

The previous prime is 678813053167. The next prime is 678813053249. The reversal of 678813053184 is 481350318876.

It is a happy number.

678813053184 is a `hidden beast` number, since 6 + 78 + 8 + 1 + 30 + 531 + 8 + 4 = 666.

It is a super-2 number, since 2×678813053184² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 678813053184.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 724453164 + ... + 724454100.

Almost surely, 2^678813053184 is an apocalyptic number.

678813053184 is a gapful number since it is divisible by the number (64) 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 678813053184, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1269448798464).

678813053184 is an abundant number, since it is smaller than the sum of its proper divisors (1860084543744).

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

678813053184 is a wasteful number, since it uses less digits than its factorization.

678813053184 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1033 (or 1003 counting only the distinct ones).

The product of its (nonzero) digits is 3870720, while the sum is 54.

The spelling of 678813053184 in words is "six hundred seventy-eight billion, eight hundred thirteen million, fifty-three thousand, one hundred eighty-four".