68785560 has 48 divisors (see below), whose sum is σ = 223554240. Its totient is φ = 18342720.

The previous prime is 68785547. The next prime is 68785579. The reversal of 68785560 is 6558786.

68785560 is a `hidden beast` number, since 6 + 8 + 7 + 85 + 560 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 95176 + ... + 95895.

It is an arithmetic number, because the mean of its divisors is an integer number (4657380).

Almost surely, 2^68785560 is an apocalyptic number.

68785560 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

68785560 is an abundant number, since it is smaller than the sum of its proper divisors (154768680).

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

68785560 is a wasteful number, since it uses less digits than its factorization.

68785560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191088 (or 191081 counting only the distinct ones).

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

The square root of 68785560 is about 8293.7060473590. The cubic root of 68785560 is about 409.7312535854.

The spelling of 68785560 in words is "sixty-eight million, seven hundred eighty-five thousand, five hundred sixty".