68271799039 has 4 divisors (see below), whose sum is σ = 71865051640. Its totient is φ = 64678546440.

The previous prime is 68271799027. The next prime is 68271799097. The reversal of 68271799039 is 93099717286.

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

It is a cyclic number.

It is not a de Polignac number, because 68271799039 - 2¹⁷ = 68271667967 is a prime.

It is a super-2 number, since 2×68271799039² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68271793039) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1796626272 + ... + 1796626309.

It is an arithmetic number, because the mean of its divisors is an integer number (17966262910).

Almost surely, 2^68271799039 is an apocalyptic number.

68271799039 is a deficient number, since it is larger than the sum of its proper divisors (3593252601).

68271799039 is a wasteful number, since it uses less digits than its factorization.

68271799039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3593252600.

The product of its (nonzero) digits is 10287648, while the sum is 61.

The spelling of 68271799039 in words is "sixty-eight billion, two hundred seventy-one million, seven hundred ninety-nine thousand, thirty-nine".