78000285508585 has 8 divisors (see below), whose sum is σ = 102109464665856. Its totient is φ = 56727480369840.

The previous prime is 78000285508583. The next prime is 78000285508619. The reversal of 78000285508585 is 58580558200087.

It is a happy number.

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

It is not a de Polignac number, because 78000285508585 - 2¹ = 78000285508583 is a prime.

It is a super-3 number, since 3×78000285508585³ (a number of 43 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78000285508583) 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, 709093504569 + ... + 709093504678.

It is an arithmetic number, because the mean of its divisors is an integer number (12763683083232).

Almost surely, 2^{78000285508585} is an apocalyptic number.

It is an amenable number.

78000285508585 is a deficient number, since it is larger than the sum of its proper divisors (24109179157271).

78000285508585 is a wasteful number, since it uses less digits than its factorization.

78000285508585 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1418187009263.

The product of its (nonzero) digits is 35840000, while the sum is 61.

The spelling of 78000285508585 in words is "seventy-eight trillion, two hundred eighty-five million, five hundred eight thousand, five hundred eighty-five".