68074745 has 12 divisors (see below), whose sum is σ = 84608940. Its totient is φ = 52578624.

The previous prime is 68074723. The next prime is 68074757. The reversal of 68074745 is 54747086.

It can be written as a sum of positive squares in 6 ways, for example, as 226576 + 67848169 = 476^2 + 8237^2 .

It is a de Polignac number, because none of the positive numbers 2^k-68074745 is a prime.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3890 + ... + 12299.

It is an arithmetic number, because the mean of its divisors is an integer number (7050745).

Almost surely, 2^68074745 is an apocalyptic number.

It is an amenable number.

68074745 is a deficient number, since it is larger than the sum of its proper divisors (16534195).

68074745 is a wasteful number, since it uses less digits than its factorization.

68074745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16252 (or 16223 counting only the distinct ones).

The product of its (nonzero) digits is 188160, while the sum is 41.

The square root of 68074745 is about 8250.7420878367. The cubic root of 68074745 is about 408.3150060727.

The spelling of 68074745 in words is "sixty-eight million, seventy-four thousand, seven hundred forty-five".