68506536086 has 4 divisors (see below), whose sum is σ = 102759804132. Its totient is φ = 34253268042.

The previous prime is 68506536073. The next prime is 68506536139. The reversal of 68506536086 is 68063560586.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17126634020 + ... + 17126634023.

It is an arithmetic number, because the mean of its divisors is an integer number (25689951033).

Almost surely, 2^68506536086 is an apocalyptic number.

68506536086 is a deficient number, since it is larger than the sum of its proper divisors (34253268046).

68506536086 is a wasteful number, since it uses less digits than its factorization.

68506536086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34253268045.

The product of its (nonzero) digits is 6220800, while the sum is 53.

The spelling of 68506536086 in words is "sixty-eight billion, five hundred six million, five hundred thirty-six thousand, eighty-six".