68571836506 has 8 divisors (see below), whose sum is σ = 106175746944. Its totient is φ = 33179920860.

The previous prime is 68571836471. The next prime is 68571836519. The reversal of 68571836506 is 60563817586.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 552998620 + ... + 552998743.

It is an arithmetic number, because the mean of its divisors is an integer number (13271968368).

Almost surely, 2^68571836506 is an apocalyptic number.

68571836506 is a deficient number, since it is larger than the sum of its proper divisors (37603910438).

68571836506 is a wasteful number, since it uses less digits than its factorization.

68571836506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1105997396.

The product of its (nonzero) digits is 7257600, while the sum is 55.

The spelling of 68571836506 in words is "sixty-eight billion, five hundred seventy-one million, eight hundred thirty-six thousand, five hundred six".