68772045 has 16 divisors (see below), whose sum is σ = 112377600. Its totient is φ = 35897664.

The previous prime is 68772037. The next prime is 68772049. The reversal of 68772045 is 54027786.

It is not a de Polignac number, because 68772045 - 2³ = 68772037 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 68771994 and 68772012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68772049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48070 + ... + 49479.

It is an arithmetic number, because the mean of its divisors is an integer number (7023600).

Almost surely, 2^68772045 is an apocalyptic number.

It is an amenable number.

68772045 is a deficient number, since it is larger than the sum of its proper divisors (43605555).

68772045 is a wasteful number, since it uses less digits than its factorization.

68772045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97604.

The product of its (nonzero) digits is 94080, while the sum is 39.

The square root of 68772045 is about 8292.8912328572. The cubic root of 68772045 is about 409.7044171360.

The spelling of 68772045 in words is "sixty-eight million, seven hundred seventy-two thousand, forty-five".