68875503145 has 32 divisors (see below), whose sum is σ = 90236716416. Its totient is φ = 50256000000.

The previous prime is 68875503143. The next prime is 68875503157. The reversal of 68875503145 is 54130557886.

It is not a de Polignac number, because 68875503145 - 2¹ = 68875503143 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 68875503092 and 68875503101.

It is not an unprimeable number, because it can be changed into a prime (68875503143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 745770 + ... + 833020.

It is an arithmetic number, because the mean of its divisors is an integer number (2819897388).

Almost surely, 2^68875503145 is an apocalyptic number.

It is an amenable number.

68875503145 is a deficient number, since it is larger than the sum of its proper divisors (21361213271).

68875503145 is a wasteful number, since it uses less digits than its factorization.

68875503145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87561.

The product of its (nonzero) digits is 4032000, while the sum is 52.

The spelling of 68875503145 in words is "sixty-eight billion, eight hundred seventy-five million, five hundred three thousand, one hundred forty-five".