68767560 has 48 divisors (see below), whose sum is σ = 223495740. Its totient is φ = 18337920.

The previous prime is 68767549. The next prime is 68767591. The reversal of 68767560 is 6576786.

68767560 is a `hidden beast` number, since 6 + 87 + 6 + 7 + 560 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 66879684 + 1887876 = 8178^2 + 1374^2 .

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

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, 95151 + ... + 95870.

Almost surely, 2^68767560 is an apocalyptic number.

68767560 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

68767560 is an abundant number, since it is smaller than the sum of its proper divisors (154728180).

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

68767560 is a wasteful number, since it uses less digits than its factorization.

68767560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191038 (or 191031 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 45.

The square root of 68767560 is about 8292.6208161232. The cubic root of 68767560 is about 409.6955105894.

The spelling of 68767560 in words is "sixty-eight million, seven hundred sixty-seven thousand, five hundred sixty".