68590518 has 16 divisors (see below), whose sum is σ = 137438400. Its totient is φ = 22820616.

The previous prime is 68590477. The next prime is 68590549. The reversal of 68590518 is 81509586.

It is a self number, because there is not a number n which added to its sum of digits gives 68590518.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7168 + ... + 13731.

It is an arithmetic number, because the mean of its divisors is an integer number (8589900).

Almost surely, 2^68590518 is an apocalyptic number.

68590518 is an abundant number, since it is smaller than the sum of its proper divisors (68847882).

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

68590518 is a wasteful number, since it uses less digits than its factorization.

68590518 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21451.

The product of its (nonzero) digits is 86400, while the sum is 42.

The square root of 68590518 is about 8281.9392656551. The cubic root of 68590518 is about 409.3436215718.

The spelling of 68590518 in words is "sixty-eight million, five hundred ninety thousand, five hundred eighteen".