78289971059 has 8 divisors (see below), whose sum is σ = 78365738640. Its totient is φ = 78214241376.

The previous prime is 78289971007. The next prime is 78289971083. The reversal of 78289971059 is 95017998287.

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 78289971059 - 2²⁰ = 78288922483 is a prime.

It is a super-2 number, since 2×78289971059² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 78289970986 and 78289971004.

It is not an unprimeable number, because it can be changed into a prime (78289971359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5622584 + ... + 5636490.

It is an arithmetic number, because the mean of its divisors is an integer number (9795717330).

Almost surely, 2^78289971059 is an apocalyptic number.

78289971059 is a deficient number, since it is larger than the sum of its proper divisors (75767581).

78289971059 is a wasteful number, since it uses less digits than its factorization.

78289971059 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18949.

The product of its (nonzero) digits is 22861440, while the sum is 65.

The spelling of 78289971059 in words is "seventy-eight billion, two hundred eighty-nine million, nine hundred seventy-one thousand, fifty-nine".