68508810 has 48 divisors (see below), whose sum is σ = 188604936. Its totient is φ = 17193984.

The previous prime is 68508809. The next prime is 68508857. The reversal of 68508810 is 1880586.

It can be written as a sum of positive squares in 4 ways, for example, as 68508729 + 81 = 8277^2 + 9^2 .

It is a super-2 number, since 2×68508810² = 9386914095232200, which contains 22 as substring.

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 23 ways as a sum of consecutive naturals, for example, 20859 + ... + 23918.

Almost surely, 2^68508810 is an apocalyptic number.

68508810 is an abundant number, since it is smaller than the sum of its proper divisors (120096126).

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

68508810 is a wasteful number, since it uses less digits than its factorization.

68508810 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44807 (or 44804 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 36.

The square root of 68508810 is about 8277.0048930758. The cubic root of 68508810 is about 409.1810143610.

The spelling of 68508810 in words is "sixty-eight million, five hundred eight thousand, eight hundred ten".