68753538405 has 48 divisors (see below), whose sum is σ = 122198940864. Its totient is φ = 35748725760.

The previous prime is 68753538367. The next prime is 68753538419. The reversal of 68753538405 is 50483535786.

68753538405 is a `hidden beast` number, since 68 + 7 + 5 + 3 + 538 + 40 + 5 = 666.

It is not a de Polignac number, because 68753538405 - 2⁶ = 68753538341 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 174910 + ... + 410000.

It is an arithmetic number, because the mean of its divisors is an integer number (2545811268).

Almost surely, 2^68753538405 is an apocalyptic number.

It is an amenable number.

68753538405 is a deficient number, since it is larger than the sum of its proper divisors (53445402459).

68753538405 is a wasteful number, since it uses less digits than its factorization.

68753538405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235266 (or 235263 counting only the distinct ones).

The product of its (nonzero) digits is 12096000, while the sum is 54.

The spelling of 68753538405 in words is "sixty-eight billion, seven hundred fifty-three million, five hundred thirty-eight thousand, four hundred five".