78486205355 has 4 divisors (see below), whose sum is σ = 94183446432. Its totient is φ = 62788964280.

The previous prime is 78486205349. The next prime is 78486205363. The reversal of 78486205355 is 55350268487.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 78486205355 - 2¹⁴ = 78486188971 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 78486205297 and 78486205306.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 7848620531 + ... + 7848620540.

It is an arithmetic number, because the mean of its divisors is an integer number (23545861608).

Almost surely, 2^78486205355 is an apocalyptic number.

78486205355 is a deficient number, since it is larger than the sum of its proper divisors (15697241077).

78486205355 is a wasteful number, since it uses less digits than its factorization.

78486205355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15697241076.

The product of its (nonzero) digits is 8064000, while the sum is 53.

The spelling of 78486205355 in words is "seventy-eight billion, four hundred eighty-six million, two hundred five thousand, three hundred fifty-five".