68436545 has 16 divisors (see below), whose sum is σ = 83711232. Its totient is φ = 53699520.

The previous prime is 68436517. The next prime is 68436553. The reversal of 68436545 is 54563486.

It is not a de Polignac number, because 68436545 - 2⁶ = 68436481 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 92999 + ... + 93731.

It is an arithmetic number, because the mean of its divisors is an integer number (5231952).

Almost surely, 2^68436545 is an apocalyptic number.

It is an amenable number.

68436545 is a deficient number, since it is larger than the sum of its proper divisors (15274687).

68436545 is a wasteful number, since it uses less digits than its factorization.

68436545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1072.

The product of its digits is 345600, while the sum is 41.

The square root of 68436545 is about 8272.6383336877. The cubic root of 68436545 is about 409.0370919029.

The spelling of 68436545 in words is "sixty-eight million, four hundred thirty-six thousand, five hundred forty-five".