678374190000 has 1000 divisors, whose sum is σ = 2758071409632. Its totient is φ = 159667200000.

The previous prime is 678374189971. The next prime is 678374190001. The reversal of 678374190000 is 91473876.

It is a tau number, because it is divible by the number of its divisors (1000).

It is a super-2 number, since 2×678374190000² (a number of 24 digits) contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (678374190001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 199 ways as a sum of consecutive naturals, for example, 242188600 + ... + 242191400.

Almost surely, 2^678374190000 is an apocalyptic number.

678374190000 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 678374190000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1379035704816).

678374190000 is an abundant number, since it is smaller than the sum of its proper divisors (2079697219632).

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

678374190000 is a wasteful number, since it uses less digits than its factorization.

678374190000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2877 (or 2847 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 45.

The spelling of 678374190000 in words is "six hundred seventy-eight billion, three hundred seventy-four million, one hundred ninety thousand".