68486013 has 32 divisors (see below), whose sum is σ = 113097600. Its totient is φ = 40704768.

The previous prime is 68486009. The next prime is 68486021. The reversal of 68486013 is 31068486.

It is a happy number.

68486013 is a `hidden beast` number, since 6 + 8 + 48 + 601 + 3 = 666.

It is not a de Polignac number, because 68486013 - 2² = 68486009 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68486053) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4795 + ... + 12647.

It is an arithmetic number, because the mean of its divisors is an integer number (3534300).

Almost surely, 2^68486013 is an apocalyptic number.

It is an amenable number.

68486013 is a deficient number, since it is larger than the sum of its proper divisors (44611587).

68486013 is a wasteful number, since it uses less digits than its factorization.

68486013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7898 (or 7892 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 68486013 is about 8275.6276499127. The cubic root of 68486013 is about 409.1356229510.

The spelling of 68486013 in words is "sixty-eight million, four hundred eighty-six thousand, thirteen".