678903033600 has 1728 divisors, whose sum is σ = 2897184568320. Its totient is φ = 153929318400.

The previous prime is 678903033593. The next prime is 678903033607. The reversal of 678903033600 is 6330309876.

It is a happy number.

678903033600 is a `hidden beast` number, since 6 + 7 + 8 + 9 + 0 + 3 + 0 + 33 + 600 = 666.

It is an interprime number because it is at equal distance from previous prime (678903033593) and next prime (678903033607).

It is a tau number, because it is divible by the number of its divisors (1728).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (678903033607) 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, 2317075054 + ... + 2317075346.

It is an arithmetic number, because the mean of its divisors is an integer number (1676611440).

Almost surely, 2^678903033600 is an apocalyptic number.

678903033600 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 678903033600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1448592284160).

678903033600 is an abundant number, since it is smaller than the sum of its proper divisors (2218281534720).

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

678903033600 is a wasteful number, since it uses less digits than its factorization.

678903033600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 415 (or 390 counting only the distinct ones).

The product of its (nonzero) digits is 489888, while the sum is 45.

The spelling of 678903033600 in words is "six hundred seventy-eight billion, nine hundred three million, thirty-three thousand, six hundred".