78531183068555 has 8 divisors (see below), whose sum is σ = 107699908208352. Its totient is φ = 53849954104128.

The previous prime is 78531183068537. The next prime is 78531183068561. The reversal of 78531183068555 is 55586038113587.

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 78531183068555 - 2¹⁴ = 78531183052171 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 78531183068491 and 78531183068500.

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, 1121874043802 + ... + 1121874043871.

It is an arithmetic number, because the mean of its divisors is an integer number (13462488526044).

Almost surely, 2^{78531183068555} is an apocalyptic number.

78531183068555 is a deficient number, since it is larger than the sum of its proper divisors (29168725139797).

78531183068555 is a wasteful number, since it uses less digits than its factorization.

78531183068555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2243748087685.

The product of its (nonzero) digits is 120960000, while the sum is 65.

The spelling of 78531183068555 in words is "seventy-eight trillion, five hundred thirty-one billion, one hundred eighty-three million, sixty-eight thousand, five hundred fifty-five".