68786550 has 192 divisors, whose sum is σ = 224985600. Its totient is φ = 15120000.

The previous prime is 68786519. The next prime is 68786563. The reversal of 68786550 is 5568786.

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

It is a junction number, because it is equal to n+sod(n) for n = 68786496 and 68786505.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 273925 + ... + 274175.

It is an arithmetic number, because the mean of its divisors is an integer number (1171800).

Almost surely, 2^68786550 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68786550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (112492800).

68786550 is an abundant number, since it is smaller than the sum of its proper divisors (156199050).

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

68786550 is a wasteful number, since it uses less digits than its factorization.

68786550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308 (or 297 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 45.

The square root of 68786550 is about 8293.7657309572. The cubic root of 68786550 is about 409.7332192692.

The spelling of 68786550 in words is "sixty-eight million, seven hundred eighty-six thousand, five hundred fifty".