68118630 has 32 divisors (see below), whose sum is σ = 167475168. Its totient is φ = 17721600.

The previous prime is 68118581. The next prime is 68118637. The reversal of 68118630 is 3681186.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 68118591 and 68118600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68118637) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26461 + ... + 28920.

It is an arithmetic number, because the mean of its divisors is an integer number (5233599).

Almost surely, 2^68118630 is an apocalyptic number.

68118630 is an abundant number, since it is smaller than the sum of its proper divisors (99356538).

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

68118630 is a wasteful number, since it uses less digits than its factorization.

68118630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55432.

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 68118630 is about 8253.4011171153. The cubic root of 68118630 is about 408.4027285455.

The spelling of 68118630 in words is "sixty-eight million, one hundred eighteen thousand, six hundred thirty".