78050553258085 has 8 divisors (see below), whose sum is σ = 95945070346776. Its totient is φ = 60917504981760.

The previous prime is 78050553258059. The next prime is 78050553258137. The reversal of 78050553258085 is 58085235505087.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 7852179126276 + 70198374131809 = 2802174^2 + 8378447^2 .

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

It is a de Polignac number, because none of the positive numbers 2^k-78050553258085 is a prime.

It is a super-4 number, since 4×78050553258085⁴ (a number of 57 digits) contains 4444 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 190367202864 + ... + 190367203273.

It is an arithmetic number, because the mean of its divisors is an integer number (11993133793347).

Almost surely, 2^{78050553258085} is an apocalyptic number.

It is an amenable number.

78050553258085 is a deficient number, since it is larger than the sum of its proper divisors (17894517088691).

78050553258085 is a wasteful number, since it uses less digits than its factorization.

78050553258085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 380734406183.

The product of its (nonzero) digits is 67200000, while the sum is 61.

The spelling of 78050553258085 in words is "seventy-eight trillion, fifty billion, five hundred fifty-three million, two hundred fifty-eight thousand, eighty-five".