83121327685759 has 8 divisors (see below), whose sum is σ = 91077273750528. Its totient is φ = 75231958575960.

The previous prime is 83121327685741. The next prime is 83121327685793. The reversal of 83121327685759 is 95758672312138.

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 83121327685759 - 2⁷ = 83121327685631 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 83121327685694 and 83121327685703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83121327685729) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16644236127 + ... + 16644241120.

It is an arithmetic number, because the mean of its divisors is an integer number (11384659218816).

Almost surely, 2^{83121327685759} is an apocalyptic number.

83121327685759 is a deficient number, since it is larger than the sum of its proper divisors (7955946064769).

83121327685759 is a wasteful number, since it uses less digits than its factorization.

83121327685759 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33288477485.

The product of its digits is 152409600, while the sum is 67.

The spelling of 83121327685759 in words is "eighty-three trillion, one hundred twenty-one billion, three hundred twenty-seven million, six hundred eighty-five thousand, seven hundred fifty-nine".