68540330386 has 16 divisors (see below), whose sum is σ = 113736581568. Its totient is φ = 30715896400.

The previous prime is 68540330359. The next prime is 68540330449. The reversal of 68540330386 is 68303304586.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21938365 + ... + 21941488.

It is an arithmetic number, because the mean of its divisors is an integer number (7108536348).

Almost surely, 2^68540330386 is an apocalyptic number.

68540330386 is a deficient number, since it is larger than the sum of its proper divisors (45196251182).

68540330386 is a wasteful number, since it uses less digits than its factorization.

68540330386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43879937.

The product of its (nonzero) digits is 1244160, while the sum is 46.

The spelling of 68540330386 in words is "sixty-eight billion, five hundred forty million, three hundred thirty thousand, three hundred eighty-six".