68513800 has 24 divisors (see below), whose sum is σ = 159295050. Its totient is φ = 27405440.

The previous prime is 68513773. The next prime is 68513807. The reversal of 68513800 is 831586.

It can be written as a sum of positive squares in 3 ways, for example, as 57183844 + 11329956 = 7562^2 + 3366^2 .

It is not an unprimeable number, because it can be changed into a prime (68513807) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 171085 + ... + 171484.

Almost surely, 2^68513800 is an apocalyptic number.

It is an amenable number.

68513800 is an abundant number, since it is smaller than the sum of its proper divisors (90781250).

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

68513800 is a wasteful number, since it uses less digits than its factorization.

68513800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 342585 (or 342576 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 68513800 is about 8277.3063251278. The cubic root of 68513800 is about 409.1909486730.

The spelling of 68513800 in words is "sixty-eight million, five hundred thirteen thousand, eight hundred".