68100580 has 24 divisors (see below), whose sum is σ = 144281592. Its totient is φ = 26998272.

The previous prime is 68100559. The next prime is 68100611. The reversal of 68100580 is 8500186.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 729316 + 67371264 = 854^2 + 8208^2 .

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 7 ways as a sum of consecutive naturals, for example, 12807 + ... + 17326.

It is an arithmetic number, because the mean of its divisors is an integer number (6011733).

Almost surely, 2^68100580 is an apocalyptic number.

It is an amenable number.

68100580 is an abundant number, since it is smaller than the sum of its proper divisors (76181012).

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

68100580 is a wasteful number, since it uses less digits than its factorization.

68100580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30255 (or 30253 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 28.

The square root of 68100580 is about 8252.3075560718. The cubic root of 68100580 is about 408.3666526562.

The spelling of 68100580 in words is "sixty-eight million, one hundred thousand, five hundred eighty".