68191036 has 12 divisors (see below), whose sum is σ = 122245200. Its totient is φ = 33263840.

The previous prime is 68191033. The next prime is 68191043. The reversal of 68191036 is 63019186.

It is a junction number, because it is equal to n+sod(n) for n = 68190992 and 68191010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68191033) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 207736 + ... + 208063.

It is an arithmetic number, because the mean of its divisors is an integer number (10187100).

Almost surely, 2^68191036 is an apocalyptic number.

It is an amenable number.

68191036 is a deficient number, since it is larger than the sum of its proper divisors (54054164).

68191036 is a wasteful number, since it uses less digits than its factorization.

68191036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 415844 (or 415842 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 68191036 is about 8257.7863861933. The cubic root of 68191036 is about 408.5473798047.

The spelling of 68191036 in words is "sixty-eight million, one hundred ninety-one thousand, thirty-six".