68500545 has 32 divisors (see below), whose sum is σ = 115928064. Its totient is φ = 34483200.

The previous prime is 68500543. The next prime is 68500571. The reversal of 68500545 is 54500586.

It is not a de Polignac number, because 68500545 - 2¹ = 68500543 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68500543) 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, 17269 + ... + 20861.

It is an arithmetic number, because the mean of its divisors is an integer number (3622752).

Almost surely, 2^68500545 is an apocalyptic number.

It is an amenable number.

68500545 is a deficient number, since it is larger than the sum of its proper divisors (47427519).

68500545 is a wasteful number, since it uses less digits than its factorization.

68500545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3673.

The product of its (nonzero) digits is 24000, while the sum is 33.

The square root of 68500545 is about 8276.5056032120. The cubic root of 68500545 is about 409.1645589732.

The spelling of 68500545 in words is "sixty-eight million, five hundred thousand, five hundred forty-five".