68613845 has 16 divisors (see below), whose sum is σ = 87540480. Its totient is φ = 51480000.

The previous prime is 68613827. The next prime is 68613851. The reversal of 68613845 is 54831686.

It is not a de Polignac number, because 68613845 - 2²⁰ = 67565269 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6020 + ... + 13170.

It is an arithmetic number, because the mean of its divisors is an integer number (5471280).

Almost surely, 2^68613845 is an apocalyptic number.

It is an amenable number.

68613845 is a deficient number, since it is larger than the sum of its proper divisors (18926635).

68613845 is a wasteful number, since it uses less digits than its factorization.

68613845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7276.

The product of its digits is 138240, while the sum is 41.

The square root of 68613845 is about 8283.3474513629. The cubic root of 68613845 is about 409.3900209705.

The spelling of 68613845 in words is "sixty-eight million, six hundred thirteen thousand, eight hundred forty-five".