678765150 has 288 divisors, whose sum is σ = 2252712960. Its totient is φ = 149688000.

The previous prime is 678765133. The next prime is 678765187. The reversal of 678765150 is 51567876.

678765150 is a `hidden beast` number, since 67 + 8 + 76 + 515 + 0 = 666.

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 678765096 and 678765105.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 2050485 + ... + 2050815.

It is an arithmetic number, because the mean of its divisors is an integer number (7821920).

Almost surely, 2^678765150 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 678765150, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1126356480).

678765150 is an abundant number, since it is smaller than the sum of its proper divisors (1573947810).

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

678765150 is a wasteful number, since it uses less digits than its factorization.

678765150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 397 (or 379 counting only the distinct ones).

The product of its (nonzero) digits is 352800, while the sum is 45.

The square root of 678765150 is about 26053.1216939545. The cubic root of 678765150 is about 878.8333153167.

The spelling of 678765150 in words is "six hundred seventy-eight million, seven hundred sixty-five thousand, one hundred fifty".