68121486 has 20 divisors (see below), whose sum is σ = 152642952. Its totient is φ = 22707108.

The previous prime is 68121467. The next prime is 68121497. The reversal of 68121486 is 68412186.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 68121486.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 210090 + ... + 210413.

Almost surely, 2^68121486 is an apocalyptic number.

68121486 is an abundant number, since it is smaller than the sum of its proper divisors (84521466).

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

68121486 is a wasteful number, since it uses less digits than its factorization.

68121486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420517 (or 420508 counting only the distinct ones).

The product of its digits is 18432, while the sum is 36.

The square root of 68121486 is about 8253.5741348824. The cubic root of 68121486 is about 408.4084361465.

The spelling of 68121486 in words is "sixty-eight million, one hundred twenty-one thousand, four hundred eighty-six".