78559095587 has 4 divisors (see below), whose sum is σ = 89781823536. Its totient is φ = 67336367640.

The previous prime is 78559095583. The next prime is 78559095631.

78559095587 is nontrivially palindromic in base 10.

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

It is a cyclic number.

It is not a de Polignac number, because 78559095587 - 2² = 78559095583 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78559095583) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5611363964 + ... + 5611363977.

It is an arithmetic number, because the mean of its divisors is an integer number (22445455884).

Almost surely, 2^78559095587 is an apocalyptic number.

78559095587 is a deficient number, since it is larger than the sum of its proper divisors (11222727949).

78559095587 is a wasteful number, since it uses less digits than its factorization.

78559095587 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11222727948.

The product of its (nonzero) digits is 158760000, while the sum is 68.

The spelling of 78559095587 in words is "seventy-eight billion, five hundred fifty-nine million, ninety-five thousand, five hundred eighty-seven".