79863805039 has 8 divisors (see below), whose sum is σ = 80917704000. Its totient is φ = 78810980352.

The previous prime is 79863805001. The next prime is 79863805061. The reversal of 79863805039 is 93050836897.

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

It is a cyclic number.

It is not a de Polignac number, because 79863805039 - 2¹³ = 79863796847 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79863805639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 118354 + ... + 416815.

It is an arithmetic number, because the mean of its divisors is an integer number (10114713000).

Almost surely, 2^79863805039 is an apocalyptic number.

79863805039 is a gapful number since it is divisible by the number (79) formed by its first and last digit.

79863805039 is a deficient number, since it is larger than the sum of its proper divisors (1053898961).

79863805039 is a wasteful number, since it uses less digits than its factorization.

79863805039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 537137.

The product of its (nonzero) digits is 9797760, while the sum is 58.

The spelling of 79863805039 in words is "seventy-nine billion, eight hundred sixty-three million, eight hundred five thousand, thirty-nine".